TB141XG [Coordinate Address Link] ▼
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To travel to Lisbon and hopefully back again. Collecting photographs on the way.
In 1736 John Harrison tested his H1 chronometer on board "Centurion" Travelling to Lisbon in Portugal and returned on the "Orford". The chronometer kept very good time.
Gallery Images related to John Harrison Geocoin John Harrison geocoinView All 6 Gallery Images
We found "John Harrison Geocoin" in "Thame Town Teaser [Oxon]" (GCNNK4). We'll drop it somewhere soon.
Moving on to Longitude new
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