This style was produced, I think, well into the 1950s and maybe even the early '60s.  I had a white one for many years.  I think it was 450 watts.  I gave it to a friend who loved its simplicity because I had bought myself a vintage one-speed Waring with the art deco "rocket ship" style base that has a smaller footprint and takes up less space on my bar.  I was lucky that it came with what seem to be ice crusher blades that are wider and don't taper to a point at their tips.  Very effective.

It's hard to find any definite information about the age of these blenders on line.  It's easy to spot the reproduction versions that showed up on the market back in the '90s or so, as those aren't single speed models, don't have the original Waring logo, and don't use the all-metal direct drive system.

Ralph I had a Waring Blender just like yours that I bought in ‘71 at the Salvation Army Thrift Store for $3.00 and I used it until ‘87 when I sold it at a garage sale so we could amass the $3000.00 we needed for the downpayment and closing costs on our first condo.

That blender was built like a tank!  We sold lots of treasures to get our foot in the door of home ownership.

Eddie

Oh Eddie, I know that story of scratching up money for a down payment.  Dave and I did the same thing when we bought our first house in 1990. 

As far as kitchen blenders go, I've become a vintage Osterizer convert.  The blade assembly is easily removed for cleaning, the carafe threads are the same as on a standard mouth mason jar, and there are various blade types for specific uses.  I also have the Osterizer food processor attachment, which is larger than a mini processor and perfect for amounts that are too small to warrant pulling out my giant '70s Sunbeam processor.

Since the Waring Blendor was originally developed for mixing cocktails, I feel it's the appropriate make to sit atop my bar.  Mine has turned out grasshoppers on St. Patrick's Day, gin fizzes for watching the July 4th parade that used to pass by our former house, and the occasional home version of Orange Julius, which is currently in order since my orange tree is loaded and they're starting to drop.