Ponzini, John (1835-1871)
Ponzini, John, & Son
Holborn, London; carvers, gilders and looking-glass manufacturer (fl.1835–71)
Ponzini recorded at 73 Leather Lane in 1835 but the number was 74 from 1837. John Ponzini & Sons listed in the 1871 London Post Office Directory as carvers, gilders & looking glass makers at 22 Hatton Garden.
Source: DEFM
The original entry from Dictionary of English Furniture Makers, 1660-1840 can be found at British History Online.