Working USN MK 7 Compass Sold As Parts

This is a working used USN MK 7 Compass being sold as parts. I believe these were used on the PBY in WWII. Compass is incomplete and unmarked so I'm not absolutely positive as to application. Probably needs adjusting. Buy it for parts or use it for a custom installation. Good  condition overall. BX37 Payment Terms Will combine shipping whenever possible to save you money. Please let me know before paying so I can adjust cost. Seller is not responsible for items delayed in customs No partial refunds.