Proof --, a similar lot in the issued colour combination of black and deep ultramarine, these colours submitted on 27 October 1953. Also the issued stamp in a sheet number mint block of ten and one on first day cover

細節
Proof --, a similar lot in the issued colour combination of black and deep ultramarine, these colours submitted on 27 October 1953. Also the issued stamp in a sheet number mint block of ten and one on first day cover