I have inherited 3 rifles 2 model 99's and one 23D. They all look pretty old and was wondering g if anyone could give me some info. One 99 is a 250/3000 the other a 300 and the 23D is a 22 hornet. The 300 has a serial number of 626673. The 250 632627 and the 23d 217537. Can anyone tell me age. Not interested in selling. Sentimental value far exceeds monetary