??

X/bolt Safety model......post 1983

one w/o.......

Marlin date codes in linky...

http://marlinspares.com/wp-content/uploads/2012/07/Marlin-Date-codes-ver8-396mb2-1024x791.jpg

more Marlin stuff......

http://www.lasc.us/FryxellMarlin1894.htm

http://marauder.homestead.com/files/TUNING_M_1894.htm