The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
119. Patent Office. Washington. D. C. Foster and Reynolds. Act of Congress May 19 1898. 1904
1106. White House. North Front. Washington. D. C. Illustrated Post Card. 1904. Act of Congress of May 19 1898
W3. The White House. North Front. Washington. D. C. Illustrated Post Card. 1907
Grand Stairway in the Congressional Library. Washington. D. C. W9. Illust. Post Card
City Post Office. Washington. D. C. Rotograph. 1905
E. C. Kropp. No. 399. Post Office. Washington. D. C. 1906
Washington. U. S. Patent Office. B. S. Reynolds
Washington. D. C. Post Office Department. E. C. Kropp. No. 399. 1904