Windsor?
http://www.myfonts.com/fonts/tilde/windsor/regular/

That's it! Thank you!

Well, Windsor is CLOSE on some letters (especially the printed sample), but the /A , /K (which is upside-down in the first photo) and /g most definitely are NOT Windsor…

The lowercase gets some differences indeed.
My wood type may be a redesign or a copy from the same model (i.e. the Windsor designed by Elisa Pechey in 1905?)?

It seems that the Xilografia Internazionale Legnago also collaborated from time to time with type designer Umberto Fenocchio, whose Linea typeface ( http://www.umbertofenocchio.it/linea.php ) seems to me one of the hundred akzidenz/helvetica local redesigns (I've also found some digital rip-offs of this font).

Still, since I was searching for original wood types to digitalize, I guess I'll just have to discard this font.

Here are some pictures or the geometric grotesk font from the archives, do you have an ID for it too?

(mixed with some compressed grotesk, much closer to Umberto Fenocchio's 'Linea Compatta')

There are some distinctive letterforms in that grotesk so it might in fact be worth digitizing, especially since what I call "fauve" fonts are quite fashionable these days. Not that that style is my own cup of tea...

I've also found some digital rip-offs of this font

Unless the original was made into an "official" digital font, the usual term for that is "revival". :-)

hhp

I've added snapshots of the most distinctive letters.
The oblique lowercase e and the open curve of the lowercase g are quite distinctive.

Those two are indeed somewhat uncommon (noting that Kabel has such an "e", and Cheltenham -and Trebuchet- have a similar "g") but I actually had my eye more on things like the "R" for example.

hhp

As far as the lighter sans is concerned, the /R and the /B have a distinctly Secession look to it, which suggests that this particular typeface may have been copied from Austrian sources during the first two decades of the twentieth century