If you do searches on the major US gun auction/selling websites for this model and completed listings that sold (not asking prices with no bids), that will give their current real-world values. Depending on whether you are able to ship them to a seller outside your area, local demand may also determine the price. I would guess roughly somewhere in the mid-three digit dollar range, but this is not based on a search as described above.

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Alan
SWCA LM 2023, SWHF 220