Keep in mind #7 came out before most of us were born. My best guess is the early 1920's and back then the paints being brushed onto cars and later sprayed were shellac, varnish and lacquer, all pigmented single stage coatings.
Also keep in mind that Meguiar's mostly catered to the professional side of the industry and didn't launch their Consumer Line until 1973, again, probably before some here were born.
It's not a wax or a paint sealant, it's a non-abrasive polish, in Meguiar's terminology it's a "Pure Polish", it's commonly used on fresh paint before 30 days air cure as it's completely safe for fresh paint and also to create a wet look. The wet look does tend to work better on single stage paints but a lot of people really like it on their clear coat finishes. Keep in mind, paint technology has come a long ways in just the last decade or so and a brand new paint job looks clear and glossy with nothing on them, it wasn't like that back in the old days.
Here's a snippet from an article I wrote,
Pre-cursors to M07
This is just a guess on my part because the people that would know the answers are no longer with us... that said, it's my guess this was a pre-cursor to the M07 product if not the M07 product. Note the art deco design of the first bottle...
Here's a collection of 4 old Mirror Bright products from between the 1920' and 1940's
Photos Courtesy of MeguiarsOnline.com
M07 Sealer Reseal Glaze --> Show Car Glaze
I posted these pictures recently to another related thread and thought I would share them here just to give people reading this a
picture or
anchor in their mind as to just how old the M07 formula is, it's been around since the Model-T. The glass bottle is
post-WWII, a glass bottle with the Mirror Bright wording on the label would be
pre-WWII
Sometimes I remind people that
these products were around before plastic was invented, thus the glass bottles. The "cylinder" bottle you see below, just to the right of the glass bottle was the first plastic bottles to be introduced I think in the late 1950's, maybe early 1960's.
The third bottle from the left is a clear plastic bottle when they switched to the current style of bottles and is from the 1970's
The 4th bottle from the right shows when they changed the name from Sealer Reseal Glaze to Show Car Glaze primarily because as our lingo changed in the car appearance world, people were confusing "Sealer" with "Sealant" and M07 is water-soluble, hopefully everyone reading this can see why that kind of confusion could be a problem in the enthusiast or consumer market.
You can read the rest of the story and see all the pictures here, I'd re-post it but it's very picture heavy with antique bottles and cans.
Some Vintage Meguiar's Products from my Collection (Lots of pictures)
