The 2023 Summer Auction - Sale 340 Day 4

1930s-40s a group of 17 SYS postal stationery cards,showcasing different denomination and cancels, advertising cards, etc. In which 13 cards used, 3 cards CTO with rare postmarks and one card unused. Please view.

1930至40年代一組17枚孫像郵資片，展示了不同面值及郵戳，還有檢查片和廣告片。其中13枚實寄、一枚未使用、3枚蓋銷罕見郵戳。請預覽。