Vintage 1960s Royal Dux Porcelain Tiger Pair

This pair of stalking tigers, male and female, are vintage, made in the 60s in Czechoslovakia. The male is 11" x 4", the female is 8" x 3". They have the pink clay mark and the ink stamp characteristic of the 60s/70s Royal Dux figurines. The male is in excellent vintage condition, but the female has had breaks in two legs that were repaired professionally, so you can hardly see them. See pics. They are priced taking this into consideration. They have numbers that I am not sure how to interpret, and I'm not even sure that I'm reading them correctly. The male has what looks like: 392/0 or 39210 80 80 and the female looks like: 651 90 I'm not sure about the 90 because the stamp covers part of it.