Lot 666
J Series
Estimate
500 - 1,300 HKD
1978 (18 Mar) J25M National Science Conference CTO S/S, tied by Peking first day cds.
1978.3.18 J25M科大蓋銷小全張，銷北京首日日戳。
Ava Auctions 14th Spring Auction
Final bidding date:
March 28, 2026 at 1:00 AM CET