I’m no expert on pricing vintage guitars, but I suspect most high dollar vintage guitars are going to be martins.

How is the action? If the action is like buttah, then it is worth something to me. I assume the tone is great to amazing as well. Those strings look old so that may be difficult.

If the action is amazing, I’d pay up to $400 (maybe $600). You won’t lose a ton of money and you’d have a well constructed vintage instrument with great action ootb to rival the cost of a modern Mexico assembled guitar with some composite components. On the other hand you might strike gold!

Otherwise just go on Craigslist and buy a cool Martin or Taylor.

I personally have a gpcpa4 (Martin) and tonally it’s lovely and the action is perfect.

Upon further inspection it doesn’t look like it has seen much love. Maybe even spent a night or two in the rain?!

You might get it for a song.