it would depend on the person buying and or selling, but i would say from what you have told us it would go for about $500 to $600 and this would depend on the markings. have seen some for less. we have a older fellow that ALWAYS shows up at all of our local small gun shows and all he ever has are colts, old 1911, and 70 models and the SSA. they are all very nice but they are all perfect as far as collectables. have seen colt as your on his table for $800 and up, but as i said they are perfect. sorry i can't help you more.