Watch List notes:

Bank of England, L.K. O'Brien, a group of £1 (12), 1955, prefixes, L67J, M20J, N94J, O77J, R66J, S35J, T78J, U09J, W21J, X16J, Y52J, Z82J,
(EPM B273), a complete group of prefixes ending 'J' from this series, good very fine to about uncirculated (12).

Estimate: £80 - £120