Cistern (60/ΛΗ) in section ΚΚ ... John Travlos ... Dirty Cartridge Paper Drafting Ink ... 1937 ... ΚΚ ... ΚΚ:60/ΛΗ
Cistern (69/Λ-69/ΛΣΤ) in section ΚΚ ... John Travlos ... Pencil drawing. Dirty Cartridge Paper Pencil ... 1937 ... Cistern (69/Λ-69/ΛΣΤ) in section ΚΚ.