McColl Rankin & Stanistreet, Deborah Ext GM Co. Certificates of Inspection of Boiler: a/ 14 Nov 1940, b/ 27 Nov 1940, c/ 13 May 1946 , d/ 17 May 1946. All inspections were of boiler at Deborah Extended, 2 boilers made by; Roberts & Sons Cornish Boiler, and 2 boilers by Babcock & Wilcox Air Receiver.organization, business, mine, mccoll rankin & stanistreet, deborah ext gm co. certificate of inspection of boiler department of mines roberts & sons cornish babcock & wilcox air receiver