Potter's Test Piece ... AMS Rotate 270 CW
Potter's test piece ... Jeff Vanderpool ... Well L 11:1. Horizontal (normal) ... 20 Apr 2021
Potter's Test Piece ... AMS Horizontal (normal)
Potters' debris test pieces wasters ... Anne Hooton ... Drafting Film Drafting Ink
Potter's Test Piece Fragment. Potter's Test Piece ... ΩΔ-5 857, 858 P 32373 ΩΔ 483 P 32365 P 32390 P 32374 P 32375 P 32373 P 32374 P 32375
Potter's Test Pieces ... AMS Horizontal (normal)