No number....I wonder if it's an original print. he did print in large editions....
Try Googling his name....there's lots out there....then check on ebay...
Linda C

thanks for the reply, ive tried everywhere on the net cant find anything yet, will keep searching

Well here's a whole bunch signed for $65.00 each.

You could contact the gallery owner. Just because these aren't exactly like the one you have doesn't mean the price won't compare.

Here is a link that might be useful: Dan Mitra

From what I can find on the net...Dan Mitra worked both in etchings and in lithographs. I don't know if he made a lithograph from the plates of his engravings or if they were dfferent works.
The engravings are selling for about 10 times what the lithographs sell for....or perhaps those selling "lithographs" for $60 don't know the difference between the 2.
does your picture have a plate line?
Linda c