Don't need to hazard a guess, the infomation came from "Venäläiset hävittäjät" (Russian Fighters) by Keskinen and Stenman, 2004. There were some old references to VH-201/21 as being a Type 18. But, I'd say the reference is abouit as good as it gets for the subject
Below are links to articles on the various I-16 types. Given it is 1/72, looks like it "might look like a 24" ;-) Actually, given that it started life as a 27, it was quite close to the 18 fuselage. The referernce does not explain fully how it was "24-ized". Clearly the spinner cap was not used. I'd say go for it.
Note that in the picture I posted of VH-21 in Warpaint, it does not have the fuselage access hatch nor the cockpit door on the right side of the 24. It is more 18 than 24.
From the link below:
"The very last examples of the Type 27 made use of the remaining components of Type 18 manufacture (which was being replaced by the Type 24), apparently including in some cases the entire fuselage assembly. Thus, one will occasionally see a photo of a Type 27 sporting underwing rockets, and other such later features."
http://vvs.hobbyvista.com/Modeling/Polikarpov/I-16/Kit_Comparison/
http://vvs.hobbyvista.com/Modeling/Polikarpov/I-16/Kit_Comparison/description.php#type24
The skis were Russian, hewre is IR-101 when captured. A similar "style" was used on the Gladiators, including the Swedish Gladiators. Could have been of Swedish design.