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Correspondence from Boris Minchev of the Bulgarian Academy of Sciences, Central Laboratory for Brain Research, Sofia, Bulgaria, to Dr. Curtis Hardyck at the University of California at Berkeley. The message, dated Sofia, July 20, 1977, requests a reprint of Dr. Hardyck's 1972 paper on 'Left-Handedness' published in Psychological Bulletin, and other similar reprints. The front features three Bulgarian postage stamps from 1977 depicting religious icons: St. Gregory the Theologian (1 stotinki), St. Jovan Vladimir (13 stotinki), and the Holy Trinity visiting Abraham (2 stotinki). Postmarked in Concord, CA on October 1, 1977, with an earlier, partially visible Bulgarian postmark. |
