from memory the h36 that went to Border town Keith GC had a metal tank added when put on AUS register and should have EO in log book. the number we are looking for is YY EO XXX where XXX is the number issued by Dafydd L
At 75 years old Dafydd handed it all in but just maybe he made it for all h36 and thus it could be used. He reminded me he did say when done it should be pressure tested. Ian M
