This mouthpiece looks a lot like a vintage Conn Steel-Lay with a different name on it. Store branding was as common in this era as it is today and this was likely made for a specific store, Naujoks-McLaughlin, in Los Angeles, California.
It has a short shank and metal table rails and tip fused onto the rubber. The corners of the tip, on the rubber side, are slighlty chipped, but that is irrelevant because of the metal rails on the reed side of the mouthpiece.
Vintage cap and ligature included.