Casgliadau Arlein

A letter from the Mine Safety Appliance Co. to Prof. K. Neville Moss of Birmingham University. Typed in black ink on off-white, company headed paper. A letter replying to a request by the university to acquire a two-hour model of self-contained breathing apparatus. Dated December 2, 1931. Documents 88.98I/6 (27) - (36) are held together with a paperclip. All documents with the accession number 88.98I/6 were originally contained together in an acidic card file.