Photo 1 of Columbian 9 x 12 Security Envelopes, 100/Box, 9 x 12 Inches, White (COLO930) & 6 x 9 Self Seal Envelopes, 100/Box, 6 x 9 Inches, Release & Seal Peel and Seal Strip, White (COLO652) Envelopes + Strip, White

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Photo 1 of Columbian 9 x 12 Security Envelopes, 100/Box, 9 x 12 Inches, White (COLO930) & 6 x 9 Self Seal Envelopes, 100/Box, 6 x 9 Inches, Release & Seal Peel and Seal Strip, White (COLO652) Envelopes + Strip, WhitePhoto 2 of Columbian 9 x 12 Security Envelopes, 100/Box, 9 x 12 Inches, White (COLO930) & 6 x 9 Self Seal Envelopes, 100/Box, 6 x 9 Inches, Release & Seal Peel and Seal Strip, White (COLO652) Envelopes + Strip, White