would you say around the $200-$250 mark as a fair price as its a dealer who i contacted about it and he will more than likely sell it on?
I wouldn't trade it for that... more like $400... As I mentioned the Marcos sketch alone should net at least $100 - the Martineck a minimum of $50 & the Auck (not Conan as that's the binder sketch) perhaps the same - $50. Those three sketches $200 minimum in my eyes (without checking previous ebay sales).