Profile and details (round base) ... John Travlos ... Also heliotype. See PD 2366 for new drawing. 82-366 82-366 ... 1960 ... PD 1130 (DA 3321) ... PD 1130
Profile and details (round base) ... John Travlos ... Also heliotype. See PD 2366 for new drawing. 82-366 82-366 Dirty Heavy Tracing Paper Drafting Ink ... 1960 ... PD 1130 (DA 3320) ... PD 1130