Marcel Duchamp served as a board member of the Chess Foundation in 1959 and raised over $32,000 over the course of the 1960's to support the American Chess Foundation through the Marcel Duchamp Chess Endowment Fund.
The works donated to the American Chess Foundation could be confirmed by the Artist's Equity Foundation 
through exhibition or finance records, or possibly by Allen Kaufman.
It feels reasonable to expect there be some cross-reference between the organizational entities that either contributed or were beneficiaries of the original Chess Foundation exhibition sales.
A 1966 exhibition benefiting the American Chess Foundation featuring 32 artists to whom Duchamp solicited works reflecting on the theme and imagery of chess
These pages catalog objects and reference points for artworks once belonging to the American Chess Foundation, here referred to as the Wallach-Stein collection, with an emphasis on valuation.
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