Bank of England, Matthew Marshall, £50, 6 October 1845, serial number H/U 19654, variety with small vignette of Britannia, cut and rejoined, annotations, stamp, pinholes, overall good fine but with superb original paper quality, a high denomination for this cashier, a remarkable note and excessively rare
EPM B203g £15,000-£20,000

This is the EPM plate note.