1763-64—London, England
The entry for Sackbut in A New and complete dictionary of arts and sciences is noteworthy because it describes the instrument, even at this late date, as “a sort of trumpet,” and because it mentions multiple sizes of trombones: “Sackbut, a musical instrument of the wind-kind, being a sort of trumpet, though different from the common trumpet both in form and size: it is fit to play a bass, and is contrived to be drawn out and shortened, according to the tone required, whether grave or acute. The Italians call it trombone, and the Latins tuba ductilis….There are sackbuts of different sizes, distinguished by the epithets primo or I’, secundo or II’, terzo or III’, &c. or I’, 2′, 3′, &c. (New and complete 2827).