[f. prec. + -ER1.] A book printed in the fifteenth century.

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1830.  Blackw. Mag. XXVII. Feb., 306. We shall give ourselves no bibliomaniacal airs; but, at the same time, we mean strenuously to assert our capabilities for becoming a genuine ROXBURGHER, a true BIBLIOPHILE, and an ardent devotee of FIFTEENERS.

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1876.  Cutter, Rules Dict. Catal., 68. Such single books are fifteeners or the rarest Americana.

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