Lady or Lady's Leg is what I've been told. Seen 'em, never found one personally. One just sold for $150 on eBay, but I don't know if there are different models that may be worth more.

https://www.ebay.com/itm/CASE-Bradfo...UAAOSwVjdfvoTK

That's for a Case. There are cheaper, Chinese knock-offs out there that look identical ... a bazillion different names, including Remington, Winchester, etc. that can go for $15.