Cf. David Drakard, op. cit., p.199 and 200, pls.551 and 552; also see by the same author 'Napoleon on Pots Part 1', E.C.C. Transactions, Vol.13, Pt. 1, pls.34a,b,c and d for the print source and related wares.
The print in the above lot comes from a cartoon published by Fores entitled An Old Performer playing on a new Instrument or one of the 42 touching the Invincible. It refers to the Royal Highland Regiment, later to become the Black Watch, and their victory over the French outside Alexandria, when the eagle of Napoleon's Invincibles was captured.