The Crass Model was the hammerless gun. In that serial number range the hammer gun was the New Ithaca Gun (NIG). Hammer gun grades were letters X, A, AA, B, C, D and E. We need to see several pictures to figure this out.
X was the lowest grade. If it is an X-, A- or AA-Grade it doesn't have engraving on the receiver, that banner is roll-stamped on each side. the B-Grade which had Damascus barrels was the first to have engraving.
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