Vintage Camera and Leather Case Keystone K-40 Magazine M8M I have absolutely no idea how to test if it works Looks relatively clean and the case has some obvious wear from age I live in a home with cats so alert me before purchasing if you have any allergies! Smoke free home! Please look at all images as they are part of the description! :) Smoke-free home! BUNDLE TO SAVE!! :) Thanks for stopping by