Neat little plinkers.
I had a number of them when I was in to the Spanish semiautos.
These little 1911 style
pistols from Llama were the only ones from that mfg that interested me. Otherwise it was Star and Astra.
Anyway, Early production didn't have the vent rib. I think the actual Model was XV for the standard gun, there was a separate model for the alloy frame pistol, the plated & engraved guns, ect.
'Especial' was used by Llama on several of their handguns.
Cal 32acp and 380acp were also available in this small 1911 style.
A locked breech in the 380 was made as well as a blowback system.
32acp pistols were made before and during ww2 (not sure about cal 380). Nicely finished, some are WW2-German Armed Forces acceptance marked.
Post war quality was hot and cold on these and other Llama pistols. Some really nicely made ones and some not so nicely made stuff.
There's two different bbl and slide latches on these 22cal versions but I don't remember the difference visually. Parts diagrams would probably help out if you ever got to that point. ,,,and any parts are somewhat scarce as the company has been out of business the late 90s.
The original magazines are a premium,,if you sell the pistol, I'd personally sell it with one mag and sell the other two separately, They are worth pretty good $$ by themselves.
Have fun with it,,that's what they were made for!
added:
You can date the pistol to the yr of proofing which is considered the yr of mfg by checking
the 3 proof codes (called the triad) on the frame.
It looks like the 3 proofs on your pistol are located on the left side of the frame above the front
of the trigger guard on the small bevel of the frame.
The link below explains the 3 proofs and what they stand for.
One of which is a date code indicating the year the gun was proofed.
(The proof codes are the same for any Spanish handgun regardless of manufacturer)
http://star-firearms.com/firearms/proof.shtml