The "Dirtiest Sensor" I've ever seen

I can't imagine any ebay seller using film.
The marks are also on his hands so it's not
dirt on the table

Could be a webcam or a point and shoot that
you can't get at the sensor, but if that were
the case it wouldn't have got there anyway.

Someone once told me that the enlarger lenses
in pro printing labs were absolutely filthy

I suppose you could use a 1 hour lab and then get a CD with the prints, but it would be very much the hard way to produce pictures for eBay!

Dirt on the sensor does become well defined at very small apetures.

There's no EXIF info in the images, but I'd guess they're at f32.

Maybe the guy uses his camera as an ashtray?