The Ithaca/SKB side-by-sides were introduced in the 1966 Ithaca catalogue with the offerings being the 100, the 200E and the 200E Skeet, all three in 12-gauge 2 3/4 inch only. For 1967 the line expanded to include 20-gauges with 3-inch chambers, and the 200E Skeet got a recoil pad. 1971 saw the addition of the 280 with the straight grip stock in 12- and 20-gauges. For 1972 they added a 150 to the offerings. By 1975 the 150 was gone from the line up and the 100, 200E, 200E Skeet and the 280 were the offerings thru 1976. The 200E Skeet was no longer offered in the 1977 Ithaca catalogues. I don't have a 1978 Ithaca catalogue, and by 1979 the SKBs are gone from the Ithaca Gun Co. catalogues.
I have to appologize, the catalogue pictures I posted above are from the 1979 SKB Firearms catalogue put out by SKB Sports Inc., 190 Shepard Ave., Wheeling, IL 60090. So, I have no Ithaca catalogue offering a 300, 400, 400 SKEET or 480.
