Just another chapter of "Who's this dude?

UPDATE2:  Bacho Kiro, nickname for Kito Petrov Zanev.   This is a good guy! To make a long life short in words, he joined a Monastery and then worked as a teacher in various villages in his country from 1857 to 1876.  He walked streets and paths on foot preaching armed resistance against the brutality of the Ottoman empire.  He was front and center in the April uprising in 1876.  Later betrayed, he was captured and hung.

You go history...teach us.

The stamp itself is Bulgarian, 1985 stamp, I think.  The dates gave me confused.....unless celebrating the 150th of this good guy/good dude.  What an honor!
The stamp is in good condition, albeit used.  You can see the faint outline of a circular cancel.

Research and some time will hopefully yield the answer.  It is a fairly recent stamp...certainly no later than 1985. .  Nice mustache, slicked back hair, steely eyes.
One of the biggest challenges in researching these stamps is to figure out the country of origin.  Looking at this, I have no clue   The Lady of the House is very adept at research discovering a recent entry, the terror of Mongolia....was a 1945 stamp from Mongolia.   I will be seeking her help on this one.

UPDATEL:  still no luck....though a dear friend did suggest he looks like a young (obviously) George Harrison.  Identifying the language is a key and Gail is chasing a stamp web site that has a language identifier.  More time is all we need to identify the language....after that, still another chase.