It's hard to get a value on equipment like this, a lot depends on location and demand. Since most are used for business and industry, reliability is at a premium and these older machines aren't even considered. Since there isn't as much of a home market for these, prices tend to be low, unfortunately when one is looking for one the best deals seem to be on the other side of the country, and they are few and far between, which tends to increase their value a bit.
I have a Hyster H50H that I got from work for $500. They were going to send it off to the auction, so I saved them the trouble of fixing some things and sending it off. It has the G193 Continental and manual hi-lo range transmission. One weak cylinder that burns oil, steering box is worn so it wants to groundloop, and the clutch is getting iffy, but it sure is handy to have around.
Posting pics is difficult to impossible, depending on which browser you're using. If you can host it somewhere and just drop the text of the location, as long as it ends in .jpg, one of us can sort the code and make it show. There is the option to upload photos to an album here, if you don't already have a non-photobucket site to put them. That's where my forklift pic is.