No Image Lot 53 A 19th century Continental ebony, brass and ivory octant by G. Raetjen, Bremen 53A 19th century Continental ebony, brass and ivory octant by G. Raetjen, Bremen Mallams A 19th century Continental ebony, brass and ivory octant by G. Raetjen, Bremen The instrument with adjustable filters, an ivory scale and nameplat... Add to watchlist Live
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