Usually a nominal 16"x12" with a print area of slightly over 11x8.5 is £120 ($192) for a FB archivally processed images, same price for smaller, and rises with larger sizes, certain images are slightly more.
I have assorted sizes, but my most frequent sale is 11x14 matted and framed for $200 in a simple metal frame. Larger is more expensive. I am going to increase cost soon.
I sold a 12"x27" framed to 20"x35" to a friend when I was moving away for his newly purchased house at a discounted price of $600.
It's been too long for me. Had I developed a career of this my prints would be worth thousands. I've been inactive for a quarter century and all of my old stuff is lost or destroyed so I'd be "giving" my new work away. Screw that!! I'll let my new stuff rot in storage first. Just let it die with me.
Well, I haven't actually charged someone for any of my work yet....but I just printed some post cards on Ilford's PostCard Paper and I have them sitting in a local shop to sell for $1.50....We will see where that goes. For my regular work $25-$30 for a nice 8X10 print in a nice but cheap to me frame. Maybe I would charge a little more from a print from 4X5...not sure. If I just so happened to have an extremely amazing photo, maybe it would fetch more?
Helping to save analog photography one exposure at a time
I sell 8x12 prints on 11x14 paper matted to 12x16 for $250 and 12x18 matted to 20x24 for $350. My 5x7 platinum prints are generally in the $250 range, and whole plate (6.5x8.5) and 5x12 are $300. As I'm just getting started with gum bichromate, I haven't set pricing on that yet.