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The following visual represents the standard orientation, seam and flap configurations available for stock or custom envelopes.
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| Open Side ( O.S. ) |
Open End ( O.E. ) |
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| Side Seam Envelope ( SSE ) |
Cross Back ( C/B ) |
Double Side Seam ( DSS ) |
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| Center Seam |
Gusset |
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| Wallet Flap |
Pictoral Flap |
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