Shanghai-Nanking CSS SN 78 in Printer's Imprint block of four with SN 78a 'yuan with broken box' at pos. 1/4, some separation at top in selvage and light crease in selvage

Shanghai-Nanking CSS SN 78 in Printer's Imprint block of four with SN 78a 'yuan with broken box' at pos. 1/4, some separation at top in selvage and light crease in selvage