Russian grammar, probably copied out around the time that Poet's Echo was composed (1965), or in 1967 (Britten mentions practising ‘Russian verbs’ in a letter of 18th February, 1967, to Princess Margaret of Hesse and the Rhine).
Britten autograph ink.
5 pages
5 single-sided sheets 20.1 x 25.3 cms
Archive
https://www.bpacatalogue.org/archive/BBW-2-1-34