@funkdaddy All those fonts are close, but no cigar. Avenir is very close, but the lowercase “r” is not the same. Here is a GIF of a copy I made to see if the WhatTheFont pattern recognition tool at MyFonts.com could recognize it. It could not.
But look at the “r” in it. compare it to a similar size one in Avenir. Note how the stroke to the right narrows as it approaches the vertical stroke. In Avenir, it doesn’t do that. So this is either a slightly different font, or one that has had some of its letters reworked by hand.
BTW, if anyone wants to pursue this further with the MyFonts.com tool, the pattern recognition tool prefers greyscale TIFs with no more than 50 characters. Here is the TIF I used to see if it could identify the font.
I admire all you did to try to solve this one. I worked at it too. But I have to say I’m stumped.