@ fantail.
Thanks for the reply. And no worries about any disappointment/s. My goal was to find out what these sheets/pages were. I didn't pay a dime for them: they were not for sale and had been safely tucked away for decades.
What I don't understand though is why would someone go to a printer just to print the colours of a variety of stamps. Forty or fifty years ago stamp collectors were not making the money that they can make these days with online auctions,
ebay, etc.
My next thought is who would have the money and the necessity to have certain stamps printed so that the colours could be catalogued.
Canada Post, maybe? Maybe a stamp book publisher?
After hours upon hours on the internet, I cannot find a single sheet that even closely resembles the ones that I have. And if they do, they are plates of numerous single, used stamps, in colour with plate placement #'s and colour names included right on the original colour print out: no second print where the stamps are re-printed in blue.
The 3 sets that I have each include a main printer proof sheet in full colour and then the corresponding printer proof blue-toned print sheet that includes the stamp numbers and colour names. I know that each of these are edit proofs of some sort because they all contain printer marks.
This brings me back to my thoughts of who would go to the effort and expense to have these printed? If these sheets were something common, or something printed for a catalogue then I should have found atleast one same/similar image on the net or some mention of them on a website. Perhaps I can't find anything because I have them all, lol.
I'll add a few more photos tomorrow that show not just colour names, but type of paper used, and what I presume would be numbers of the stamps placement on a plate.
Thanks everyone for the input - but I'm not sure that I am done with these until I can see the same sheets from another source.
Cheers :)