Possible A Real 315 ?

I sold this one as a fake 315. But some says it's very likely to be a genuine 315. Besides the wide margins, anything else can be an indicator?

This appears to possibly be a vending coil, a U.S. Automatic Vending. Possibly genuine, possibly fake. Needs a cert.

Whatever the case the margins do not appear to be large enough to be certified as a 315.

This is in that semi-gray area of philately - imperf, with margins larger than the typical perforated stamp, but not huge margins which would prove that it was made as an imperf stamp. I agree with the others - it needs a cert, yet it would never get a good cert stating that it is the genuine imperf stamp.

ETA: Most collectors are not really 'gray' on this issue. Most would say it isn't big enough to be considered imperf. For most, this is black and white for what we see in this stamp. Sorry.

Tang Stamps,
Since images on screens can often be deceptive. To perhaps clarify the discussion. What are the actual dimensions of this stamp?

Looking through PF images, this caught my eye. Says it is a 305 with trimmed perfs. I can't envision a jumbo so big that one could trim and still look like a 315.