Miguel is correct about how the GAI "first graded" designation worked.
They assigned a "first graded" card to each GRADE. So, for example, the first 1979 Topps Kiko Garcia that graded GAI 10 would receive a "first graded" designation, as would the first 1979 Topps Kiko Garcia that graded GAI 9. Theoretically, they could have a "first graded" designation for every grade.
Entirely possible to have a "first graded" Lenox Cobby in GAI 1 and 2, in other words.
-Al
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