at first, I can (more or less easy) read in Czech, so no need for English for replies

well, I think that Finns have only that info which Oboronexport (or somewhat else) want to give them (and perhaps Soviets avoided any signs that Finnish planes are different from those in VVS (Soviet AF)).
So in that sense Soviet sources have a bit "more weight" than Finnish

nicméně, nebudu se debatovat

Sorry for the airport name, I was a little bit distracted and overlooked your information.

I've used F-13 as it is official Finnish type. Hope it is understandable.

Than you for your submission!

"F-12" designation was only in some soviet texts. In finnish AF was still designation "F-13".

AFAIK finnish MiGs were marked as F-12, not F-13
(F-13 was for Warsaw Pact members AFs and F-12 were for the rest)

"Mimo letiště" is wrong as it's gate guard at Rissala which is Kuopio city a/p