It’s easiest to see traces of the two different undercoins on the reverse (eagle) side of this coin:

10K: the letter “K” to the left of the scepter;
10K: the trumpet design overlays the scroll;
5K: crown (at top of second image);
5K: wreath (at bottom of second image).

On the obverse, there are traces of wing feathers and a scepter, both probably from the 10K undercoin.