FIRST DAY OF ISSUE
U.S. POST OFFICE
FACER CANCELLING MACHINE
LUMINESCENT TAGGED
8 AIR MAIL STAMP
STAMPS OVERPRINTED WITH
A LUMINESCENT MATERIAL TO
TEST SPEED HANDLING OF MAIL
BY AUTOMATIC EQUIPMENT
Art Craft
DAYTON
AUG I
9-AM
1963
OHIO
FIRST VIR MAIL
OF USE
LUMINESCENT TAGGING