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[[pre-printed]] International Exhibition, 1876. Board on Behalf U.S. Executive Departments, No. 1725 G St. N. W. Washington, D.C.[[/pre-printed]] May 25, [[pre-printed]] 187 [[/pre-printed]] ^6 Profs. S.F. Baird Reps. Smithsonian Sir. I have the honor to inclose my checks in payment of vouchers (4) Very Respectfully J S Conrad Col + DO [[notation]] 77 [[/notation]]