Argentina Color Variations

I'm in the process of getting a significant number of random Argentine stamps into a semblance of order and have been surprised at the very many color variations I'm seeing. Some of these are Scott listed but, far and away, most are not. Certainly some of the variations are environmental, but most are obviously printing differences. For the non-listed variations, is it worth it to keep all but the most obvious ones? I know, we all make our own collecting rules, but interested in any feedback. Thanks!

Scott isn't going to have that much depth for other than the US no matter what Country you are looking at. For Argentinian varieties you need something like this:

https://classiclatinamerica.com/new...e-published/

Check out this free online catalog of Argentina
CATALOGO de ARGENTINA Gz

https://cefiloza.blogspot.com/p/blog-page.html

Here are a couple examples of the detail on the pages

Thank you VERY much, rogdcam and lithograving! These sources are exactly what I was looking for, but oddly, could never find.