Rare - Sinar 521.91 Bayonet Camera Copal Shutter Cable Release Adapter PartFree Shipping USPS / InsuranceThis Sinar 521.91 Is In excellent Condition. Works well. Thanks For Looking!1012044 oct20 86That_Canon_Guy Guarantee:Satisfaction Guaranteed; 14-Day No Hassle Return PolicyQuestions Encouraged Before the SaleUnlimited Email Support After the SaleProfessional Packaging On Every ItemAll Paid Items Ship USPS/UPS in 24 Hours or Less Monday To FridayWe Email USPS/UPS Tracking Number...sAll Items Fully TestedServing Customers On eBay Since May 2010; Thank You! Be Sure To Add Me To Your Favorites List!