Botvinnik, Tal, Spassky Autographs - 1962

Varna, 1962. First Edition. First Day Cover of the set of 6 Official Stamps and 1 Official Block specialy issued for the Olympiad together with the Official Philatelic Cancels. Signed by three world champions (one then-current, two then-future) -- BOTVINNIK,TAL and SPASSKY.