1729
used Block Larger Than four -- a spectacular block of fifteen (3x5) used on piece; horizontal crease between the second and third rows and a few small perforation faults, otherwise a very fine showpiece. S.G. 116, #750. Photo

細節
used Block Larger Than four -- a spectacular block of fifteen (3x5) used on piece; horizontal crease between the second and third rows and a few small perforation faults, otherwise a very fine showpiece. S.G. 116, #750. Photo
來源
George C. Dyer, 1985