The Model 23 is a Japanese-made (Miroku?), Winchester-branded replacement (?) for the famous/discontinued Model 21, that was introduced in 1978 & disc ca 1987-87.
There were several models/configs/2 bbl sets, and "limited editions", too - like the Light & Heavy Duck, Quail Special, etc.
A NIB example, w/box & papers would be worth $2K to $5K, depending on Model/config/engraving, etc.