# Thumb 1 Thumb 2 Form Number Division Title Where Used EKU LKU Notes Revision Actions
51 None Registered Letter Bill - left half of two-part form completed by sending postmaster to accompany registered letter 1858 unk. 1878 DLS Replaced by Gray card, Form 1550
52 None Return Registered Letter Bill - right half of two part form completed by sending postmaster and dispatched in next mail after registered letter 1859 DLS 1879 DLS Replaced by Gray card, Form 1550
53 None Receipt for Registered Package white half-sheet 1868 unk 1878 DLS became Form 1556 images added by Russ
54 None Receipt for Registered Package blue half-sheet used by RMS clerks 1875 DLS became Form 1541 example added by Russ
55 A Blanks and Books Furnished by Division of Post Office Supplies for Fourth-Class Offices a reference list to be used with Green Card form 1567 1900 DLS dated by name of 1st Asst. PMG
56 A-2 Report of mail in transit through a post office on a particular route letter from 1st Asst. PMG in response to a request for an allowance for mail separation 1904 DLS
57 A-22 Notice of Change of Address postal card requesting customer to update address 1914 unk
58 B Supposed Liable to Customs Duty affixed to packages upon arrival in the U.S. 9 February 1911 Contributed by G. Taylor "L" is omitted in the word "located" and visible damage to the letter "o"
59 B-22 Request for Better Address postal card from postmaster to customer seeking address for item held 1895 DLS 1911 ukn also, local version for Cincinnati, 1892 - DLS
60 C-22 Slip toAccompany Redirected Letter