You can buy and bid with confidence as Smits Philately is a member of the following stamp dealer organisations:
ASDA
American Stamp Dealer Association (USA)
PTS
Philatelic Traders Society (UK)
APHV
Bundesverband des Deutschen Briefmarkenhandels (DE)
NVPH
Nederlandse Vereniging van Postzegelhandelaren (NL)
Michel 967/971, thoughts of Mao, 8f in mint never hinged strip of 5 (10x) in complete sheet with all sheetmargins (folded vertically after the 5th row, so all strips are unfolded!!). Very rare, only a handful of sheets survived. Michel catalogue value 30.000+++ EURO!!!
picture 38987 001
picture 38987 002