I tried all COMPACTA, SWISS911 921, Plakette. I JUST cannot find this one. Would appreciate your help. Thank you in advance

Helvetica  Sugerida por Twentyoneg 
Swiss 924  Sugerida por donshottype 
Block Gothic Demi ExtraCond  Sugerida por wawahaha 
Dharma Gothic  Sugerida por imagi 
Folio ExtraCond Bold  Sugerida por donshottype 
Action Condensed Medium Grade 3  Sugerida por imagi 

Is this from a source before the digital font era?
Very few narrow heavy fonts have a compound curve for the middle stroke of _a_, which eliminates almost all of the usual candidates for a match.
Folio Extra Cond. Bold is fairly close for the _a_ and the other letters.
The most noticeable difference is the arm of the _r_.

Ultra Compressed. the "r" may be borrowed from another style of the same font.

There is 2 Dharma Gothic M an E

Swiss 924 is perhaps the best match overall, particularly for the _a_, but like all of the other suggesstions the _r_ is rather different.

Predigital source of Swiss 924 is probably Stempel's Information Bold Condensed.
The letterforms of Swiss 914 are almost identical to Letter Perfect's Hadrian Bold, which has heavier arms on the _k_
http://myfonts.us/td-NjfHrx

I compared the full alphabet of Swiss 924 and Hadrian Bold and all letters are generally the same. So Hadrian Bold is probably also a revival of Information Bold Condensed.

It would be really helpful if we had some info on the source of _embark_ and more letters if they are available.

Bottom curve of arm on _r_ close to Helvetica Bold Cond, but top curve is not
http://www.myfonts.com/fonts/linotype/helvetica/pro-bold-condensed/glyphs.html#glyphs/531526/85
Vertical stroke too thick for the letters in _embark_

Dharma Gothic ExBold is the best match for the compound curve for the middle stroke of _a_, but its _a_ has a tail.