Here we have a Great Vintage "DOT Line Corp T-Mount Adapter Ring for Olympus OM with Box #879 - Made in Japan - Hard To Find" .  . Has some mild wear visible. This is in very good shape. 

PLEASE Review ALL photos, as they will attest to the Actual items physical condition. No Damage.  

Please visit my Ebay store at the above link. YES, We do combine items to save you on shipping costs.

Please let me know if you have any questions, and Thank You for your continued interest, support and business.