US023.18
WNS Member
United States of America
Issuing date
6 April 2018
Theme
Education
Science & Technology
(Mathematics)
Subject
L'éducation aux STEM - Mathématiques
Width
25.00 mm
Height
40.00 mm
Denomination
Forever
Perforations
12 x 12
Issuing authority
United States Postal Service
Printer
-