What are these worth nowadays?

Which model?  A5, A 500, or BPS

(pictures might help, there have been several DU models over the past few years)

BPS. Any other questions? I'll try to get some pictures. It's at my fathers or I'd post some. Will take up to 3.5" shells.

BPS in good condition tend to bring  about $500 in my area, with 12 gauge bringing a bit more than 10 and 20. They don't show up very often-not sure if that means nobody wants to sell them or nobody has one. Not sure if the DU markings would make a difference on a Browning but around here they don't seem to add anything to Remingtons(A friend has gotten two DU 1100's for $350 and passed on a third).

FWIW, I paid $460 for a BPS in 10 gauge last February and heard of another one in early April in better shape for a touch more.