military unit
Helmet Plate of the 1st Middlesex Engineer Volunteers
військова частина
Field engineers
'1st Mids'
Colonel Norman MacLeod of MacLeod
Lieutenant-Colonel Sydney D'Aguilar Crookshank
Lieutenant-Colonel Christopher Thomson
56th (London) Divisional RE
101 (London) Field Engineer Regiment
1st Middlesex Engineer Volunteers
47th (2nd London) Divisional RE
1st Middlesex Engineers