Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value.
DU guns are fickle. Prices rise and drop periodically. SN 1 is a different matter. Add 15% to the Blue book price for 001. You can reference the Blue Book of Gun Values which can be purchased on line at various retailers.
The Most recent sale has been $1195.00 for a 1995 Ducks Unlimited Model 12 in 28 gauge.
Depending on exact model, condition, box, papers, accessories, etc., 100-400 USD.
100-500 USD
100-500 USD
100-300 or so
SKB. About $400-$450.
300
@500 each
50-550 usd
I don't know the answer. But if you find out someway please post the answer because I have that exact gun..Browning model B500 0r B5 Serial number 89002750 setting in one of my gin cases!
50-250 uSD
500 USD