Ten pounds Page B326 (32) and B327 (4) all issued 1971, an original consecutively numbered run series B49 314651 to B49314686, four notes missing were replaced with the replacements series M04 349860 to M04 349863 , lion & key on reverse, wrapped in a brown & white paper band "CARE -- not in numerical sequence", top note GEF the rest mostly UNC
Estimate: 700-1200 GBP