Pssst ... There is a Smith & Wesson Long Guns forum.
I have:
20ga 3000 3" Field 28" full and 26" Multi-choke barrels
12ga 3000 3" Field 28" Multi-choke
12ga 3000 2 3/4" Police 18" bead, 2 shot ext., folding stock
12ga 3000 2 3/4" Police 20" rifle sight, 3 shot ext., composite stock
12ga 3000 2 3/4" Police 20" rifle sight, 3 shot ext., walnut stock
20ga 1000 2 3/4", 26" skeet
20ga 1000 2 3/4", 26" Multi-choke
20ga 1000M 3" Magnum, 28" full, steel receiver
12ga 1000M 3" Magnum, 30" full and 2 3/4", 28" Multi-choke barrels, steel receiver
12ga 1000 Slug, 2 3/4", 20" Rifle sight, steel receiver
12ga 1000T Trap, 2 3/4", 30" stepped rib, Multi-choke, Monte Carlo stock, steel receiver
12ga 1000 Super Skeet, 2 3/4", 25" recessed skeet choke, 15 muzzle vents, steel receiver
12ga 1000 Super 12 Waterfowler, 28" Multi-choke, Parkerized, steel receiver
The semi auto 1000 and pump 3000 were/are excellent and reliable shotguns.
Digging through some of my old S&W catalogs and brochures I found that the Model 1000 semi-auto was already being imported in 1974. I don't have any catalogs for 1970-1973 but the "Blue Book of Gun Values" says 1972-1984 for the semi-auto. The first mention I see of the 1000P/3000 pump shotgun is a new products for the '80s brochure.
S&W did discontinue the importation, from Japan, of the Howa manufactured Model 1000 semi-auto and 3000 pump shotguns, along with 1500 and 1700 series of rifles after 1984.
http://smith-wessonforum.com/smith-wesson-long-guns/104511-s-w-long-gun-photos.html
KO