Um....
This is most definitely a Bakelite ad, in that the Bakelite Company created it.
However, if you'll read the copy, you'll see that the plastic being touted is not Bakelite itself, which was and is a composite of phenolic resin and wood flour.
The plastic being advertised here is Bakelite C-11 Plastic, "an acrylonitrile-styrene copolymer." That would make it at a forerunner of today's ABS plastic, a terpolymer consisting of acrylonitrile, butadiene and styrene.
So, the LX was, in a way, a predictor of today's ABS-bodied vacuums; ABS is what makes it possible to mold intricate vacuum bodies that hold up under use. ABS is very nearly as tough as Lexan, but costs much less.