# Thumb 1 Thumb 2 Form Number Division Title Where Used EKU LKU Notes Revision Actions
501 3816a-C used with firm mailing books
502 3816a-L U.S. Mail C.O.D. Article No. used with firm mailing books 1935-11-29 1944 ASW
503 3816a-S used with firm mailing books
504 3816B
505 3816-E In place of rubber stamp on COD or insured package too soft to take handstamp.
506 3817 Certificate of Mailing Provides proof of mailing.1915-1929 4th class only; since 1929 all classes 1937 ASW 2007 ASW Wawrukiewicz, Domestic ch. 44 (1531 possible forerunner 9-37
507 3818 Change COD terms to inform delivery office of change in COD terms 1936 DLS 1987 DLS unused 1987
508 3819 Report of unsealed registered mail from 3rd Asst. PMG to the offending post office 191_ USPS
509 3819 Receipt of Form 3812 Card sent from PM to PM regarding the disposition of Form 3812 (Application for Indemnity) 1918 DLS
510 3819 Follow-up on Patron Claim ie, patron wishes to know claim status 1969 ASW unused 1969