This particular MiG-21 sheet from Kopro contains markings for two NVPAF aircraft. Both of them are in unpainted metal with green radomes. Both aircraft were flown by the 921st Air Fighter Regiment. The only difference between the two is in the nose number.

Aircraft 5121 shows eight victory markings and was flown by Pham Tuan in 1972.

The other is aircraft 5117 flown by Truong Ton, also in 1972 and with no victory markings.

The decals are  super thin and opaque so should work quite well. There are enough decals to do one of the two planes. Instructions show precisely where each of the special markings are to be applied.

Another interesting sheet that will provide you something different from the norm. 

August 2012

My thanks to www.hobbyshop.cz for the review sample. You can get yours direct from the hyperlink.