It probably is a 127, I’d need to see more of the machine at least, or get the serial number like was mentioned.
I just wanted to share a photo of a machine that fooled me, even though I had it in my hands. The low bobbin winder lug that had been molded into the machine housing had been carefully ground off, and the existing bobbin winder was raised to an aftermarket belt guard that was designed for just that purpose. The upgrade parts were available to independent sewing machine shops during the 40s and 50s. A numbered upper tension nut was added along with a long collar disc hand wheel, also available just to upgrade a Singer model 27, and the machine was repainted and decaled.
It made me start taking a second look at any 127 that I see.
CD in Oklahoma