A flat paper container, as for a letter or thin package, usually having a gummed flap or other means of closure.
Government Printing Office Official Gazette (Washingon, DC: Government Printing Office, 1912)
2400×1544, 304.6 KiB
1024×658, 46.0 KiB
640×411, 24.3 KiB
320×205, 9.2 KiB