Correspondence to or from Agence de Location de Matériels D'Opéras et D'Opérettes (ALMO). This file was originally entitled 'ALMO 1957' and held in a packet marked 'Dr. Roth 'Agents' 1957'.
Correspondence to or from Barry & Cia, Buenos Aires. This file was originally entitled 'Barry 1956-1957' and held in a packet marked 'Dr. Roth 'Agents' 1957'.
Correspondence with the Český hudebni fond (Czech Musical Fund), Boosey & Hawkes's agents for symphonic hire materials in Prague, and also with DILIA, the Czechoslovak Theatrical & Literary Agency, their agents for stage works. This file was originally entitled 'Cesky Hudebni Fond, 1957...