A VINTAGE AMERICAN BRASS SHIP'S GYRO COMPASS REPEATER, BY SPERRY GYROSCOPE CO., NEW YORK, EARLY 20TH CENTURY, the dry compass with a circular lucite cover on a conical case numbered "C-27772," centering a black directional star with fleur-de-lys North pointer centering "MARK 15 / MOD.D," encircled by "GYRO-COMPASS REPEATER / PATENTED MAR. 4, 1919," opposite "SPERRY GYROSCOPE COMPANY DIV. / THE SPERRY CORPORATION / GREAT NECK, N.Y.," enclosed by twin suspension double rings held aloft by a "U" form support on a conforming cap, mounted on a columnar pedestal fitted into a collared base with flat border pierced for deck mounting. Height: 25 3/4" Diameter: 15"