To be of any assistance in projecting values, we would need more detailed indormation on each gun: gauge or caliber, barrel length, % of finish remaining, condition of the wood, condition of bores, and damage or faults, cracks, etc.

You may also want to peruse "gunbroker.com" or "auctionarms.com"to observe where similar items have been priced.

As-s, we don't have enough information.