Colt 4 gun 150th Anniversary set

Does anyone have an idea of what a Colt 4 Gun anniversary set in pristine condition would be worth on the market today? Thay have matching serial numbers. Gun 1 is a double diamond 6 inch pyton, Gun 2 is a double diamond officers in the same finish, Gun 3 is a saa .45 buntline with 10" barrel and Gun 4 is a Engravers sampler. They have all original boxes, cases,and packaging. HELP

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