If marked with both the Stevens and Savage names, it was made between 1948 and 1991. Don't really know when they quit using tenite, but probably in the early 1950's
20,000 240's between 1942 and 1945. Originally had a tenite stock and forearm
1950's $100
The model 5100 Stevens shotgun has a plastic stock
STEVENS AND SAVAGE DID NOT PUT NUMBERS ON THE SHOTGUNS AND OVER AND UNDERS IN THE MID 4OTS UNTILL 1954. THE GUN IS WORTH ABOUT 250.00 TO 350.00
it's probably a model 5100. the tenite (plastic stock and forend) as it was called was likely made sometime around wwII, because of a shortage of wood built gunstocks and forends
gun-parts.com has them...but for 12 ga only
The Stevens 240 is an over-under .410 with double hammers, double triggers and a Tenite (plastic) stock and forearm, modified and full choke. It was made from 1940 to about 1948. Values in 2005 seem to range from the mid-$300s to upwards of $500 for good to excellent specimens. Gunshow prices have really been going up for these guns.
Try e-gunparts.com
Any of the 124 series.
Try e-gunparts.com, Shotgun News, Gun List, do a web search on "shotgun stocks".
Try e-gunparts.com
http://www.gun-parts.com/index.html/