I'm not into antiques yet, but if you don't really need the $ I would hang on to it. Especially since they were your fathers.

If you want to sell, I would recommend to list them on this board here first. If they don't sell here I would go via GunBroker.

You can put them in a shop on consignment yes, but that might take a long time to sell them. Also it's just locally. Therefore, like already said by others the only route would be to go national. Good luck.

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Jorge