Casgliadau Arlein

A letter, seven pages of notes and two pages containing plans. The letter is typed in black ink on off-white/cream paper.
The notes are typed in black ink on thin, off-white/cream paper, with details handwritten in pencil. The plans are in black ink, blue pencil and pink pencil on grey paper. Letter, notes and plans relating to Powell Duffryn Ltd. electrical equipment. The documents are dated October 1951. Loose within beige/light brown card file containing information relating to Powell Duffryn Ltd.