Mike, that NID variation was made from 1929-‘34’ (but I have seen one earlier.). I’d go easy on yourself. Assuming the price was reasonable you’re fine. Start by having the barrels inspected and a strip and clean done. If all checks out, you won’t have much more in it and you’ll know if it’s a safe shooter or not. You can go from there.

(PM me the serial number if you’d like the exact year.)

Speude Bradeos