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Envelopes
 | 40-224 - Extra Large Self Seal double window envelope A large size self-seal double window envelope used when inserting the entire check without tearing off the top stub. Not for use with checks in top position. |  |
 | 40-338 - Self-Seal Security double window check envelope The safe, reliable way to mail checks! Protect your checks with our self-sealing, security envelopes. The special triangular perforations on the flap will reveal if the envelope has been opened. | |
 | 44-005 - Check Envelope with double window Double window check envelope with blue security tint. | |