Pre-Sheer Look, BUT....
If you'll look closely at that design, you can see that Frigidaire's designers were whittling away at the Loewy design, making it appear more squared-off, less rounded.
It should be remembered that Frigidaire was owned by GM, the biggest car company in the world, and that car companies of that era worked several years ahead, signaling transitions before they actually occurred. That's what's happening with this Frigidaire - they're preparing consumers for a radically different look that consumers don't know yet is coming, but Frigidaire does know is coming.
GM did this with cars all the time. The 1949-53 Chevrolet was given a heavy face-lift in '54, to relate its styling to the big change that was coming in '55. Often, stuff intended as an overall GM styling theme was introduced on Cadillac, where it was nearly guaranteed acceptance, and then spread across the line, gradually. The example would be the tailfins introduced on the '48 Cadillac, which went all the way from Caddy to Chevy by '54. GM did this for many, many years - when they knew that they had to downsize the entire line, they began by creating the Seville, which made trim-size luxury the hottest ticket in town.
GM was not alone in squaring off appliances; GE did it at the same time. But if you'll look at '56 GE designs vs. '57 Straight-Line Design GEs, you see that it was a harsher, more abrupt transition. Frigidaire prepared much more carefully.
That doesn't mean that Frigidaire did a better job in the sales race; they had a hard time flogging the Control Tower concept to laundry equipment buyers, with the result that the Control Tower was a one-year wonder. The very glamorous GE Liberators and Stratoliners achieved fine sales, if surviving numbers are anything to go by. If I had to guess, I'd say that sales race was pretty much a dead heat.
But a lot of thought went into industrial design in those days, and I wish Corporate America would do as much for consumers now. We once had a level of glamour and excitement in consumer durables that is completely absent today.