Tom, thanks for the pertinent reply. My mom had stated that Westinghouse was using up old stock after WWII, but the B74-49 is the first range I've seen from '49 with an updated '50s look.
Coincidentally, before my mom had met my dad, she bought herself a new car. It was a '48 Ford club coupe. All of her friends told her to wait until the '49 models came out in a whole new style, but she didn't. She ended up leaving the '48 behind when she married my dad, but apparently repeated the same type of thing when they bought appliances for their new kitchen.