It looks like the appeal failed , so no checker required. Thanks, anywayby CelticTykers - ARCHIVE Checker requests (impossible)
Part of the Ordnance Survey (UK) series of challenges. This map, Explorer 144, has information on both sides, and is made up of two rectangles SU 600 370, SU 800 370 ,SU 800 600, SU 600 600 and reverse map, SU 400 400, SU 600 400, SU 600 600, SU 400 600. GC3GK87 Explorer 146 already has a Project-GC checker. Thanksby CelticTykers - ARCHIVE Checker requests (impossible)