After a distinguished 122-year naval history, including the Battle of Trafalgar (1805), Her Majesty's Ship (HMS) Victory was permanently dry-docked in 1992. Whilst in dry dock, her bilges were allowed to dry out. The sample from HMS Victory was from original frame material which had been removed due to deathwatch beetle activity; it had been treated with the pest control agent benzalkonium chloride prior to removal. No other information about collection methods was available.