Administrative correspondence from Manx customs collectors Mylrea and Quayle to the Duke of Atholl concerning merchant John Taubman's refusal to pay customs duties following the 1765 Revestment. Taubman claims the duties are unjust because he had advanced £300 on credit of harbour revenues now transferred to the Crown, and alleges he was misled by Quayle about the Duke's intention to sell the island. The letter includes Taubman's detailed goods account (rum, tea, brandies, silks, gin) and his conditional offer to pay if his loan is credited against the duties.