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[[preprinted]] INTERNATIONAL EXHIBITION 1876. Board on Behalf U.S. Executive Departments, No. 1725 G St. N. W. Washington, D. C. ^[[May 25]] 187^[[6]] [[/preprinted]] May 25 1876 Profr S. F. Baird Smithsonian Instn Sir, I have the honor to inclose four checks in payment of your vouchers. Very respectfully J S Conrad Col & DO [[stamped]] May 29 1876 [[/stamped]] [[blue pencil annotation]] 79 [[/blue pencil]]