Perth Banking Company, specimen £1, 18-, no serial number, Perth arms at top left, TWENTY SHILLINGS in decorative text at top centre, printed on watermarked paper, manuscript text on reverse signed and dated by David Walker, the cashier who signed the issued notes known, a presentable fine, an interesting piece
PMS PB 4 £1,000-£1,500

The text on reverse reads:
This is a specimen of the Twenty shilling notes supposed to be issued by the Perth Banking company and is referred to in my application to the Head distribution of stamps for Scotland of this date for a license to issue such notes
Perth 11th October 1808
David walker