Marlin 336 date of manufacture

[robroy]

I have two older 336 Marlins for which I'm trying to find date of manufacture. The link below came from Paco Kelly's site. When I enter the letter prefixes, in one case H in the other V nothing happens except the screen goes away and comes right back to the same page. Any one else have that problem? More to the point, can anyone tell me the date of manufacture for these two lever guns?

http://armscollectors.com/sn/marlinlookup.php

[robroy]

Ha! answered my own question on a later version of the same site. The H was built in 1951 and the V in 61. thanks for looking.