The sale of any tortoiseshell is illegal (unless they were manufactured prior to 1947) CITES law This antique turtle was taxidermed prior to 1947 and prior to 1900. "As you are probably aware, worked items made from tortoiseshell that acquired before 1 June 1947 do not require Article 10 certificates to allow them to be used for any commercial purpose – which would include sale. However, if a pre-1947 worked item is subsequently re-worked after 1 June 1947, then the derogation would not apply and an individual Article 10 certificate would be required. Anyone selling such re-worked items without an Article 10 certificate would be committing an offence under Regulation 8(1) of the Control of Trade in Endangered Species (Enforcement) Regulations 1997 and, if convicted, could face up to five years in prison, an unlimited fine or both. Extremely rare endangered large sea turtle is easily over 100 years old which was initially bought in 1954 for roughly $50,000 US? Condition is excellent and very artfully preserved. Been in the family for years. Should I get carbon dating done on it? Your thoughts.