LONDON, Covent Garden, Royal Italian Opera House, 1875, oval bone, royal italian opera covent garden, named (A.B. White Esq.), rev. 1875 tuesday & saturday, stall 61, ink signature (E. Hall), 50 x 36mm, 6.78g (W 164, this piece illustrated; MG 272). Good very fine, very rare; pierced for suspension £300-£400

Timothy Millett FPL 2003 (122); D. Young Collection, DNW Auction 249, 1-2 February 2022, lot 1186