![Letterbox Line Icon. Mail Box On Stand With Handle Lock. Postal Service Vector Design Concept, Outline Style Pictogram Stock Vector - Illustration of open, icon: 172574554 Letterbox Line Icon. Mail Box On Stand With Handle Lock. Postal Service Vector Design Concept, Outline Style Pictogram Stock Vector - Illustration of open, icon: 172574554](https://thumbs.dreamstime.com/b/letterbox-line-icon-mail-box-stand-handle-lock-postal-service-vector-design-concept-outline-style-pictogram-white-172574554.jpg)
Letterbox Line Icon. Mail Box On Stand With Handle Lock. Postal Service Vector Design Concept, Outline Style Pictogram Stock Vector - Illustration of open, icon: 172574554
![How do I open this? According to WITT, it's a PO box turned bank. My grandpa gave it to me. It's a combo lock that neither he nor I remember how to How do I open this? According to WITT, it's a PO box turned bank. My grandpa gave it to me. It's a combo lock that neither he nor I remember how to](https://i.redd.it/qfswvtzi4he51.jpg)
How do I open this? According to WITT, it's a PO box turned bank. My grandpa gave it to me. It's a combo lock that neither he nor I remember how to
![Chris Whong on Twitter: "This is a @USPS "arrow lock". It's a standard form factor lock that fits in all multi-unit mailboxes so the postal worker can open it (with an "arrow Chris Whong on Twitter: "This is a @USPS "arrow lock". It's a standard form factor lock that fits in all multi-unit mailboxes so the postal worker can open it (with an "arrow](https://pbs.twimg.com/media/En7FJyTXEAAibue.jpg)