Great Britain: Bank of England, group of 4 notes, 1960's to 1970's, 1 pound, ERROR NOTE, serial number DU21 6x9999, the second digit missing in the lower right serial number and likely to scratched off from the upper left serial, the remaining notes are: 10 shillings, consecutive pair C78N 587907-908, 1 pound, ES26 008505,the pounds about very fine, the 10/'s aunc (4).
Estimate: 500 - 1000