OBC definitions

Obc

1) Order book closed
Found on https://www.crosswordclues.com/clue/obc

---

OBC

[secret society] OBC is the oldest known collegiate secret society operating at the University of North Carolina at Asheville. Its existence has been documented as early as May 1938; however, there is no confirmed documentation of its founding or membership. == History == In March 1865, previously-secret legislation to create an official Sp...
Found on http://en.wikipedia.org/wiki/OBC_(secret_society)

---

OBC

Outside back cover.
Found on https://www.encyclo.co.uk/local/22539

---