I have one, purchased in 94' as you make mention. The only year of manufacture. I've documented everything fully from the Winchester historian Lenny who is no longer there. I have a .300 Winchester Magnum DBM with engraved pistol grip cap made for me by Winchester. I have been thinking of selling lately, but uncertain at the moment. They're rare and the prices are around $3000.00. I have three DBM's with my rifle as an added feature. My Winchester is highly accurate. The generation I believe is the fourth, unsure. I have not followed this for a while. Here is a link where you can find the data and logistics and pricing: "USRAC".
* Naturally, made in New Haven, Connecticut.
** And, the magazines have different letter designations as below.
http://www.pmulcahy.com/bolt-action_sporting_rifles/us_ba_spr_winchester_m70.htm