1917:
Burys & Company Ltd
Burys Bullet-Proof Steel For Aircraft 1917
Rec. Num. 1 of 2
Source: Flight November 29th 1917
1918:
Burys & Company Ltd
Burys & Company Ltd. Sheffield. Bullet-Proof Steel For Aircraft
Rec. Num. 2 of 2
Source: Flight October 3rd 1918