λA Victorian silver-mounted crocodile skin aide memoire

λA Victorian silver-mounted crocodile skin aide memoire,

by Walter Thornhill, London 1883,

rectangular form, the borders with engine-turned decoration, applied with a crowned N, the leather interior with two compartment and with a pencil, later elastic strap, length 10cm.

The Ducal coronet is for Duke of Newcastle, Norfolk, Northumberland.