Stretto is also similar.

Thanks Monica, Stretto is very near true, like the Zipper.
I first thought it was a bad made vinyl cut of one of these but the R, who is clearly different, seems designed.

There were many typefaces designed in this style in late Sixties/early Seventies, such as Strada (http://opera78.livejournal.com/254275.html), Beat Star (http://fontsinuse.com/typefaces/32135/beat-star), and Sintex (http://fontsinuse.com/typefaces/31801/sintex).
But even the precursor of them all, 1889’s Gothic Bold (http://www.flickr.com/photos/hithro/7753073390/in/set-72157631002519134) sports a curved leg on |R|.
My guess is that the sample is from a knock-off font specifically designed for sign-cutting machines.
(or maybe done with FontStruct, like Cowboy Hippie: http://www.cheapprofonts.com/Cowboy_Hippie_Pro.php ;)

Of note, the sample shows two different widths, unlike any of the above.

Thanks Riccardo,

That's some very helping resources.
Will dig for it. There's a topic about Valencia street signage that i would love to develop.
Will take time to upload some pics here.

O

FWIW, I will be releasing a revival of Hamilton's 1889 Gothic Bold in the next few weeks.

oldnick - when/where will I be able to purchase it??