- 1Reference: P85/2/8/15
Title: Correspondence about electric organ blowing equipment, including letters and estimates from Norman a...
Level of description: file
Date Free Text: 19 Dec 1912-2 Apr 1913
Production date: From: 1912 To: 1913 - 2Reference: P85/2/8/16
Title: Further correspondence concerning to the conversion to an electrical operation by The Rotasphere Com...
Level of description: file
Date Free Text: 6 Jun-Dec 1913
Production date: From: 1913 To: 1913