1976 Hong Kong postage due 5th series 50c in block of 4, with inverted wmk variety (Yang D27 var), MNH. Scarce unrecorded variety.
1976 Hong Kong postage due 5th series 50c in block of 4, with inverted wmk variety (Yang D27 var), MNH. Scarce unrecorded variety.1976年香港欠資票第五組5角四方連新，帶倒水印變異（楊目D27 var），無貼。此變異未見於目錄中。
