Official Stamps


$20 William H. Seward State Department card plate proof
PLATE PROOF WITH IMAGE OF WILLIAM H. SEWARD, 1873-1878. Official stamps printed for executive departments bear images of famous Americans. The stamps pre-paid the department's postage. Seward was secretary of state under Lincoln and Johnson.
On the night of Lincoln's assassination, Secretary Seward was attacked and nearly killed. While Johnson's secretary of state, he negotiated the purchase of Alaska.
$1 Official Mail plate proof
CERTIFIED PLATE PROOF OF OFFICIAL POSTAL SAVINGS STAMPS. Between 1911 and 1914, the Post Office Department used Official stamps to pre-pay the Postal Savings Division's postage. Shown here is a certified plate proof of the $1 value.