Quote Originally Posted by mgb74 View Post
Probably, as long as light leak significant enough and the film not too badly fogged. But a more subtle light leak may not be evident if the film is significantly fogged. I think a lot depends on how the film was stored. I assume it wasn't refrigerated.

In my opinion, to sell a camera and stipulate it's condition based on results from 40 year old film is not wise. But if you're looking to establish the most basic operation (i.e film advances and shutter fires), then perhaps OK. Just my opinion.
+1

I'm a small time Ebay Seller of mostly medium format and large format camera equipment. If someone gave me some rolls of 40 year old film, I would shoot it for fun. For testing cameras that I plan on selling I use a new roll.

If everything works great then don't forget to put in the sale description that you ran a new roll of film through the camera and the spacing was great, the lenses were sharp with beautiful bokeh, blah, blah, blah.