Correspondence between Joseph Sanders and B.L. Aldridge, April 24, 1953 to July 31, 1956

Contains 79 letters, some with multiple pages and attachments. Identification "Sanders_Col" was in genre field; transferred to this note.
Some of the questions appear to be in reference to an exhibit entitled "The Hall of Progress," which apparently featured Berliner items.
File of correspondence between Joseph Sanders, nephew of Emile Berliner, and B.L. Aldridge of R.C.A., mostly pertaining to questions of Berliner recording history.