The 633 lasted
through many changes in its life: the 1968 1220 model number upgrade, a
pickguard change, the last hurrah of the Silvertones block logo change, then finally the 'Space
Dot' 1221 model number/logo change. The body size and specs stayed the same, however,
bringing a dreadnaught to Sears customers for nearly a decade
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The 1221 was the last version of this guitar line, the
Silvertone name gone in favor of the stylized 'SR' logo, ending its catalog run
in the early 70s. The last catalog listing I have is a murky copy from 1972, but
it was definitely gone by 1976.
Introduced:
Fall/Winter 1965
Changed to 57H1220L in Fall/Winter 1968
Changed to 57H1221L in Spring/Summer 1970
Retired:
As the 1221 in 1973
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