- 1Reference: PM2936/1/47/34
Title: Correspondence: Sheppard and Pryor, Gyrotiller contractors
Level of description: sub-file
Date Free Text: Jan 1940-Apr 1941
Production date: From: 1940 To: 1941 - 2Reference: PM2936/1/50/34
Title: Correspondence: Sheppard and Pryor – Gyrotilling
Level of description: sub-file
Date Free Text: Dec 1940-Jun1941
Production date: From: 1940 To: 1941