These are nice pre-Series 70 Colt Commemoratives from the 1968-1969 era. There were two different grades offered at the time, plus you could get the WWII series with the same number. Assuming you have the standard grade WWI series, I think these are worth $650 to $850 each, depending on how fast you want to sell. I've seen as high as $900 for a single one, but do not think the seller found a buyer at that price.