Coin & Policy Envelopes Client Login Envelope Size Chart (pdf) Commercial | Window | Bank, Remittance | Coin, Policy | Catalog, Booklet | Invitation Coin & Policy Envelopes...: Standard sizes in stock. Commonly used by boutiques, hardware stores and businesses to hold small parts, jewelry, currency, coins, etc. Policy envelopes are used by insurance companies..., title companies, legal firms, and more. Uses include: Credit Card Envelopes, Jewelry Repair/Claim Envelopes, and Legal Document Envelopes, in addition to those seen below...