Check the listing for details. 50 Pack Airmail Envelopes -Blue Airmail Envelopes- Air Mail Envelopes for Party. Condition: New. Listed at 16.00 USD. About this itemREALISTIC VINTAGE DESIGN - Early 1900s airplane with blue airmail borders on vintage looking aged paper. Vintage looking airmail envelopes with aged blue airmail borders.EXCEPTIONAL QUALITY - Strong, durable and long lasting, Air Mail Envelopes constructed with thick durable paper. Airmail envelopes are 4 x 8.7 inches USPS standard size, same postal rate as standard envelopes.50 PIECE VALUE SET - Envelopes size, 4 x 8.7 inches. Stationery envelopes with a real vintage blue airmail design with blue lines on the front and back; 50 realistic blue airmail Envelopes.WIDE APPLICATIONS - Use as vintage looking airmail nvelopes, air mail writing envelopes, vintage looking airmail envelopes, invitations, Christmas Envelopes, love letter envelopes, military correspondence, military envelopes, envelopes to troops, scrapbooking, creating fun envelopes and party invitations.