Help identifying pistol

[MemHeli]

Hey guys, I'm looking for some assistance identifying this pistol.  I think it's basically the same as my Victor Ruby in 32 cal, but am struggling to find the manufacturer.  It's got quiet a bit of wear on the right side of the wood grip which tells me it was carried and used a lot.  Any help appreciated on manufacturer and value.

[Guest kingarmory]

I believe its a Russian copy of the Ruby M19, lots of copies were being made in lots of countries around and after WWI.

[Garufa]

I believe it is a Spanish Ruby delivered to and reworked in Yugoslavia.

[Guest kingarmory]

I believe it is a Spanish Ruby delivered to and reworked in Yugoslavia.

 

Good eye, those are Serbian characters on the slide.  The word is "pistol" in Serbian

[MemHeli]

I believe it is a Spanish Ruby delivered to and reworked in Yugoslavia.

What was the point of the Yugoslavian rework I wonder?  Been reading on these pistols and understand they made a bunch of them.  The other Ruby I have has a protruding post on the side to protect the safety when holstering the weapon.  These were installed in the 1930's but the Yugo model doesn't which is curious to me if it underwent a rework.

What would be a reasonable offer for this gun?  I'm interested in buying it from a friend.