Poster for English publication of the score of Donizetti's opera 'La Favorite' ['The Favourite'].

Roughly twelve and half inches by nine and a quarter. Neatly mounted on piece of cream paper, with surrounding ink rules. Good, with some ruckling and wear to corners. Characteristically arresting arrangement of type. Reads: 'CAUTION. | THE ONLY CORRECT COPY | OF DONIZETTI'S OPERA | THE FAVOURITE | AS PERFORMED IN ENGLISH AT THE | THEATRE ROYAL DRURY LANE, | IS PUBLISHED BY | JEFFERYS AND CO. | 21, SOHO SQUARE, | ALL OTHER EDITIONS PURPORTING TO BE SUNG AT THE ABOVE-NAMED THEATRE ARE | BASE COUNTERFEITS.' According to BBTI Jefferys dealt from 31 Frith Street and 21a Soho Square between 1837 and 1851 at least.