Looks like this one:
http://global.canon/en/c-museum/history/story01.html
Basically the first commercial Canon released.
But I would never buy from Goodwill's website again. I'll buy from their stores. But both times I bought something from their auction site, I got good deals on the item I won, and after I paid for them, they showed up missing. I'm thinking they decided they didn't want to sell it at such a low price, so rather than start the auction off at their minimum price, or place a reserve on it, they just decided to tell me it went missing after it was bought and paid for. Then, it took a few weeks to get my money back. It's been a real hassle, and neither time did anyone apologize for the item going missing.
On a few other attempts, I noticed that "bidders" will raise the prices on this site well beyond what similar items go for on eBay. And eBay has better buyer protections and usually has cleaner examples and will often let you know ahead of time if the item works or not. Shopgoodwill is such a gamble on quality, that it makes me suspicious if those "bidders" are real people, or are they employees or something who's job it is to just jack up the prices. I can't believe that anyone bidding on this site wouldn't also be familiar with eBay or any of the various other sites where you can get used camera gear for a whole lot less money with a lot more recourse available if something goes wrong.