Poros working. Finishing a joint with toothed chisel ... AMS 3235 Horizontal (normal) ... June-July 1953 ... Poros working. Finishing a joint with toothedchisel.
Poros working. Finishing a joint with toothed chisel ... Scanned 2005 for the 75th anniversary exhibition and publication. 3235 Horizontal (normal) ... June-July 1953 ... Poros working. Finishing a joint with toothedchisel.
Top of same poros header, from east. Intended to show tool marks. "Drove" but no toothed chisel (visible with magnifying glass) ... AMS Horizontal (normal) ... no toothedchisel (visible
