Sperm Whale Tooth with Handwritten Markings

This specimen is a large, genuine Sperm Whale tooth characterized by its curved, conical shape and organic texture. The tooth exhibits a natural range of ivory and cream tones, with significant longitudinal striations and grooves along the surface of the root area. The tip or crown of the tooth appears smoother and more polished, showing a deeper amber-yellow patina indicative of significant age and natural calcification. A standout feature of this specific item is the handwritten provenance or cataloging notes in blue or teal ink, which seem to mention 'CAPT. IVAN' and 'Aug 3', suggesting it may have been a historical nautical souvenir or part of a mid-20th-century collection. Physical condition shows jagged edges and minor losses at the base, likely where it was extracted from the whale's jaw. The material is dense and heavy, showing the classic 'Schreger lines' or cross-hatching when viewed closely at the base, confirming its status as true ivory rather than a resin cast. There is some surface staining and internal cracking (checks) consistent with natural drying over several decades. Its size and curvature suggest it came from a mature bull sperm whale, likely dating to the late 19th or early 20th century.

Upon visual examination of this Sperm Whale tooth, I find it to be a compelling natural history specimen with significant historical character. The presence of Schreger lines and natural longitudinal striations confirmed via the image supports its authenticity as genuine ivory rather than a synthetic cast. The deep amber-yellow patina at the crown suggests a 19th or early 20th-century origin, while the ink inscriptions (referencing 'CAPT. IVAN') add a layer of nautical provenance. The market for 'raw' or documented whale teeth remains strong among marine collectors, though the jagged base and internal checking (natural drying cracks) slightly temper the value compared to a pristine display piece. The size indicates a mature bull, which is rarer and more sought after. However, visual analysis alone cannot definitively rule out modern aging techniques or confirm the exact chemical composition. A full authentication would require a physical 'hot needle' test (to ensure it is not celluloid), a weight-to-density verification, and ideally, documentation proving the specimen predates the Marine Mammal Protection Act of 1972 or the CITES treaty. The inscription should also be cross-referenced with maritime logs to determine if Capt. Ivan is a known historical figure, which could significantly increase the value as a piece of scrimshaw-related history. Current market comparables for inscribed bull teeth in this state of preservation typically range between $1,200 and $1,800 at auction.