Proof  -- 12c. die proof of the frame in ultramarine on wove paper (58x48mm.) with guide mark at top, dated "19.1.26". Photo
Proof -- 12c. die proof of the frame in ultramarine on wove paper (58x48mm.) with guide mark at top, dated "19.1.26". Photo

Details
Proof -- 12c. die proof of the frame in ultramarine on wove paper (58x48mm.) with guide mark at top, dated "19.1.26". Photo