Is that the one with the pro-Axis ARR markings? Outside display?
Theres that one and one done in pro-Allied markings in another museum, both are replicas built a while back by some enthusiasts. The Axis one was done as the first IAR-80 (4 .303s) as it would have appeared in the spring of 1941, and the one in the other museum is an OD IAR-80 with roundels, as it would have been paited over Transylvania in the fall-winter of 1944.
Both look nice from the outside, but have the cockpits wrong afaik.

The one on inside display has some serious errors wit hthe nose and prop, especially the spinner thats about half the size it should be. The other one is more accurate.