Extant City of London coal duty boundary marks No Type NGR Location 1 2d TQ5091487335 W side of Dagenham Road, 80 m S of Rush Green Road, outside No 98 Access: Beside road 2 2 TQ4982187070 S side of Wood Lane 15 m E of Wisdons Close, W of bridge over culverted stream Access: Beside road 3 4a TQ4897487830 N side of railway 300 m E of Whalebone Bridge, to rear of No 334 Crow Lane Access: On railway land but visible from Crow Lane 4 2d TQ4895788200 S side of London Road outside No 403 Access: Beside road 5 2d TQ4804486532 On display outside Valence House Museum, Valence Park, Becontree Avenue, to left of front door. Originally at: TQ4844988679 E side of Whalebone Lane North at NW corner of grounds of Warren Comprehensive School. Moved following road widening in 1960. Access: During opening hours of Valence Park 6 2 TQ4882890747 S side of Collier Row Road in grounds of Abbey Care Home Access: In forecourt of house but visible from road 7 2d TQ4888491091 S side of Romford Road opposite No 70 Hog Hill Road Access: Beside road 8 2 TQ4726093811 N side of Manor Road outside No 3 'Sheepcotes' Access: Beside road 9 2c TQ4589296282 S side of London Road opposite No 126, 'The Chase' Access: Beside road 10 4c TQ4519997678 SE side of railway N of Long Shaw, 950 m S of Green Glade bridge Access: On railway land but visible from train 11 2d TQ4457098370 N side of Debden Lane opposite house called 'The Boundary' Loughton Lane Access: Beside road 12 2c TQ4316499447 S side of Coppice Row on Jacks Hill, 450 m E of the Wake Arms roundabout Access: Beside road 13 2c TL4370100399 E side of Epping Road 140 m N of junction with Crown Hill, by Ambresbury Banks Access: Beside road 14 2f TL4076604443 NE end of Galley Hill Green, 340 m S of end of metalled portion of Bumbles Green Lane Access: On public bridlepath 15 2g TL4058304873 S side of Waltham Road, 140 m W of Allmains Close Access: Beside road 06/02/2021 Version 7 © Martin Nail 2021 Page 1 of 15 No Type NGR Location 16 2c TL3932203983 N side of Holyfield Road just W of junction with St. Leonards Road Access: Beside road 18 2g TL3893204370 W of stile leading to Lousehall Lane on S side of Colemans Lane 300 m W of St. Leonards Road Access: Beside road 19 2f TL3880504443 S side of Colemans Lane 50 m W of 'Valley View' Access: On public footpath 20 1 TL3725705017 W side of Lee Navigation 120 m S of Kings Weir at end of Slipe Lane Access: Beside towpath 21 4c TL3685905126 E side of railway, N side of Slipe Lane at level crossing Access: On public footpath 22 2* TL3648405231 E side of High Road, Turnford, outside No 137 Access: Beside road 23 2c TL3429805782 E side of Holy Cross Hill, opposite footpath to Biggs Grove, 400 m NE of junction with Beaumont Road Access: Beside road 24 2h TL3227005766 In Wormley Wood, 800 m NNW of Tanfield Farm Access: On permissive path in public access land 25 2c TL3081804672 N side of Darnicle Hill, at E end of Newgate Street Bridge. Originally at: TL3081404665 S side of Darnicle Hill, E of Newgate Street Bridge. Re-erected 2011 on opposite side of road having been knocked over by a car in 2008. Access: Beside road 26 2* TL2709003424 N side of Ridgeway at junction with Shepherds Way and Well Road Access: Beside road 27 2c TL2705903196 W side of Well Road, S of exit from Queenswood School Access: Beside road 28 2c TL2609202116 W side of Hatfield Road, by side fence of No 139 Church Road 30 m S of Church Road Access: Beside road 29 2c TL2604802138 S side of Church Road, 40 m W of Hatfield Road outside No 135 Access: Beside road 30 2c* TL2570202398 N side of Heath Road, 100 m W of Osborne Road outside No 57 Access: Beside road 31 4c TL2431702736 E side of railway, 400 m S of Hawkshead Bridge Access: On railway land but visible from public footpath on opposite side of railway 06/02/2021 Version 7 © Martin Nail 2021 Page 2 of 15 No Type NGR Location 33 2c TL2055404954 W side of Coursers Road at bend N of Coursers Farm. Originally at: TL2055804949 E side of Coursers Road at bend N of Coursers Farm. Re-erected 2015 on opposite side of road having been knocked over by a car in 2012. Access: Beside road 34 2a** TL2064305781 N side of Coursers Road outside 'Greynam' 20 m SW of junction with High Street Access: Beside road 35 2a TL2059205818 On Colney Heath, 20 m S of High Street, W of No 9 Access: On public access land close to road 36 2z TL1985505923 N bank of River Colne, 15 m E of Church Lane Access: On public access land close to road 37 2c TL1819703678 SW side of High Street, London Colney, on bridge approach N of the River Colne Access: Beside road 38 2c TL1755803216 E side of Shenley Lane, S of River Colne at Broad Colney Bridge Access: Beside road 39 2e TL1720402305 N side of Harper Lane, outside No 108 Access: Beside road 40 2c TL1740702486 S side of Harper Lane, outside No 67 Access: Beside road 41 2e TL1764001434 In hedgerow 350 m E of Margaret Cottages, 65 m S of footpath leading to Shenleybury Access: On private land but just visible from public footpath 42 5 TL1605600736 W side of railway, 35 m N of the Avenue behind No 2 Marble Arch Cottages Access: On railway land but visible from road 43 2c TL1604400734 E side of Watling Street, 30 m N of the Avenue, in front of No 2 Marble Arch Cottages Access: Beside road 44 2c TL1627400073 W side of Watling Street, S of junction with Malt Lane, outside No 24 Access: Beside road 45 4b TQ1164396578 W side of railway at five-arch viaduct, N side of footpath on N bank of River Colne in Waterfields Recreation Ground. Originally at: TQ1165796562 W side of railway at five-arch viaduct, on S bank of River Colne. Re-erected in 1984 after lying in pieces at original site since 1961. Access: On public footpath 46 2a TQ1161596252 S side of Water Lane, 50 m E of bridge over River Colne. Originally at: TQ1160996252 S side of Water Lane, E of bridge over former course of River Colne. Moved for road widening in 1966, and again in 2015. Access: Beside road 06/02/2021 Version 7 © Martin Nail 2021 Page 3 of 15 No Type NGR Location 47 2* TQ1102896393 Centre of New Street at junction with High Street. Originally at: TQ1187395500 N side of Lower High Street at NW corner of Bushey Arches. Moved in 1968. Access: In road 48 2c TQ1101996382 Centre of New Street at junction with Church Street. Originally at: TQ1196295266 S side of Capel Road at junction with Pinner Road. Moved in 1968. Access: In road 49 2e TQ1307292575 E side of Oxhey Lane, outside 'The Hollies' Access: Beside road 50 5 TQ1233892233 W side of railway, 300 m S of Little Oxhey Lane Access: On railway land but visible from public footpath 51 2e* TQ1060791690 E side of Potter Street Hill, outside The Lodge 10 m N of junction with South View Road Access: Beside road 52 5 TQ0917692069 E side of railway, N of the Boundary Footpath 150 m W of Eastbury Road Access: On railway land but visible from public footpath 53 2e TQ0869792205 In school grounds N of the Boundary Footpath, 170 m E of Kewferry Road Access: On private land but visible from public footpath 54 2e TQ0836092324 N of the Boundary Footpath, 180 m W of Kewferry Road Access: Near public footpath 55 2e TQ0784192336 W side of Rickmansworth Road, 40 m S of 'The Prince of Wales' Access: Beside road 57 2e TQ0656191697 S side of Shrubs Road, 250 m NW of junction with Northwood Road Access: Beside road 58 2e TQ0583892242 E side of Rickmansworth Road where it becomes Harefield Road outside High Lodge Access: Beside road 59 2e TQ0516992801 E side of footpath from Cripps House Farm to Stockers Farm, 120 m N of Cooks Wood Access: On public footpath 60 1 TQ0466593220 N bank of Grand Union Canal 500 m NE of Springwell Lock Access: Beside towpath 61 2e TQ0435093501 N bank of River Colne, W of Shire Ditch, E of easternmost point of Inns Lake Access: On private land but visible from permissive footpath on other bank of river 62 2 TQ0404693538 W side of Springwell Lane S of River Colne at Drayton Ford Bridge Access: Beside road 06/02/2021 Version 7 © Martin Nail 2021 Page 4 of 15 No Type NGR Location 63 3a TQ3256083537 In Museum of London reserve collections. Originally at: TQ0404493541 W side of Springwell Lane in parapet of Drayton Ford Bridge. Removed in 1923 and in current ownership since 1965. Access: By appointment -- in museum store 64 2e TQ0467688045 In front garden of Savay Farm House, Savay Lane. Originally at: TQ0476988036 E side of River Colne by bridge at Savay Farm. Moved in 1962. Access: On private land but visible from road 65 3b TQ0510884620 S side of Oxford Road in parapet of bridge over the River Colne Access: Beside road 66 2e TQ0460483517 N side of St Johns Road by Long Bridge, W of junction with Cowley Mill Road Access: Beside road 67 2* TQ0492482226 N side of Iver Lane W of River Colne at Clisby's Bridge Access: Beside road 68 3b TQ0491882221 N side of Iver Lane W of River Colne in N parapet of Clisby's Bridge Access: Beside road 69 1 TQ0484680727 S side of Slough Arm of Grand Union Canal, W of footbridge 75 m E of aqueduct over River Colne Access: Beside towpath 70 4a TQ0519680121 N side of railway 20 m W of Colnbrook branch underbridge Access: On railway land but visible from permissive footpath 72 2e TQ0521179246 N side of Mill Road E of bridge over Bigley Ditch Access: Beside road 73 3b TQ0520679248 N side of Mill Road in parapet of bridge over Bigley Ditch Access: Beside road 74 2* TQ0092893845 On display at Chiltern Open Air Museum, Chalfont St.