I recently dug threw my modernized filing system, (cardboard boxes, and plastic totes) and dug out some old Winchester catalogs. Not to take anything away from what has been posted, as some of the information is different, just another take. There are some voids as I didn't go through all the files, (cardboardboxes, etc.) this starts in 1981
1981-82 Shows 94 as we knew it then, BB-XTR only in .375.
1983- missing, but nov. '83 issue of Shooting times introduces the new angle eject also chambered in the new 307 & 356, along with .375. Also new rifle has the monte carlo hump.
1984?
1985- XTR monicker & all thing associated are gone. Now called standard BB carbine. No frills stock, no chex,etc. Rebounding hammer is mentioned & still shows the monte carlo hump
1987?
1988- .375 WCF is no longer cataloged, Mote carlo hump now gone too.
1989?
1990-Shows the now new receiver hammer block safety.
1991-1997 Big bore 94 307 & 356, No real changes.
1998 444 Marlin added
1999?
2000- shows only the 444 Marlin, 307/356 gone.
According to the catalogs, we can say that the angle eject model .375 was produced for aprox. 5 to 6 years. 1983-1987/88?
The monte carlo hump stock was there for approx. the same amount of time.
375 WCF with reciever safeties are out there but I would say not in great numbers, as it shows up in 1990, possibly '89 when the 375 was no longer cataloged, But still produced to use up remaining parts/inventory.
This is, in no way definitive, as catalogs sometimes differ from actual production runs but, gives a little insight to the past. CRASH87