The Sir David Kirch Collection of Skit Notes

Bank of Oporto, a skit note of unknown purpose promising to pay WIlliam Thomas the sum of £100, December 1820, serial number 54321, with wording and design perilously close to a real banknote, very good and very scarce
Outing unlisted £120-£160

This lot was sold as part of a special collection, The Sir David Kirch Collection of Skit Notes.

View
Collection

It has not been possible to discover who William Thomas was, but it seems probably that he was the producer of the note and was simply promising to pay himself £100. The relevance of Oporto is likewise unclear.
Similar in design to the following lot, to the extent it seems likely it was produced by the same person.