Determining when a vintage handle was made

A question for any other member who may know this stuff. How can I get a date range for my vintage shaving brushes? Over on The Shave Den, they reference a site that is now sadly no longer up and running, called Old School Shaving Brushes. What I have gleaned from some of the posts is that Ever Ready "model" numbers often were the suggested retail price! Do you know of any source that can help pin down a year or years when a particular model was made?

I know of no source anywhere, and there are very few vintage ads which would help. They never expected us to actually want an old used brush decades after they were made, they were throwaways like toothbrushes.

Do you have a brush in particular that you're curious about?

Some of this still works. https://web.archive.org/web/201812271927...ushes.com/

Some of this still works.  https://web.archive.org/web/201812271927...ushes.com/

Most of it seems to work if you click on the blank thumbnails to get a large image, but it's all trial and error.

I've been trying to date this Canadian Rubberset:



Which now looks like this:



I've never seen any other brush handle with a "pillar" motif. No doubt it was meant to evoke this sort of thing:

Some of this still works.  https://web.archive.org/web/201812271927...ushes.com/

Most of it seems to work if you click on the blank thumbnails to get a large image, but it's all trial and error.

I've been trying to date this Canadian Rubberset:



Which now looks like this:



I've never seen any other brush handle with a "pillar" motif. No doubt it was meant to evoke this sort of thing:

It appears to be a Canadian model made after WW2, that's the best I can do.

I am looking to get some general info on these brushes. Age, year, that kind of stuff. They were my dads and I'm assuming they fall into the "older" category! All are branded but one. 

This one is not branded.

These have brandings and/or markings.

This one I found after the others in the mirror cabinet. It doesn't appear to have even been used.

Lots of those around, not that old, '70's, give or take a decade, I've never been able to put a name to them. Possibly sold in bulk to drug stores, department stores etc.

Later ones looked like this and were marked "Made in Taiwan".

Lots of those around, not that old, '70's, give or take a decade, I've never been able to put a name to them. Possibly sold in bulk to drug stores, department stores etc.

Oh, cool. Thanks!!! I was born in the 70's. Trust me, I'm old. Haha!!!