The 2023 Summer Auction - Sale 340 Day 2

1962 C92 Scientists (8-1) 4f with extra character "前" variety (Yang 297a),postally used, with colour stains at top and bottom. VF-F. . A rarity of PRC philately and must not be missed.

1962年紀92（8-1）蔡倫公元前變體票信銷票，上下端有輕微染色，上品。著名的新中國珍郵之一，萬勿錯過。