It is really hard to find a used tank that doesn't have some big ugly dent somewhere on iti.
Not this one. It is a very nice looking original early 1970's Yamaha 175 Enduro Gas Tank. Will probably fit up until about 1976 models also. Comes with the beautifully engraved Yamaha Gas cap which I have seen sell for over $50 on ebay. It also includes the original petcock which is missing the bottom sediment bowl..
No noticeable dents, one slight depression about 1/3 way back on left, another slight depression in the area where it meets the seat. In neither case has the paint been broken. It just shows a minimum of scratches. Paint has faded unevenly. It does have one area that looks like it might have been a pinhole rust through. It looks to be has been repaired with solder.
I have included an internet picture of a CT175 Yamaha model . The motorcycle is not included.