New 1/8th inch thick cork sealing washer for the rotary crankcase breather that was used on the BSA A7 and A10 as well as the Rocket Gold Star. 

 Buyer pays $4.50 domestic shipping on 1 or more. I do combine shipping so please contact me if you are planning on multiple purchases.

  If you have any questions you can contact Bikes & Bits through the eBay ask a question link.