1924:
John Maclennan and Co
John Maclennan Aeroplane Tapes & Cords
Rec. Num. 13 of 14
Source: Flight September 18th 1924
1926:
John MacLennan and Co
MacLennan's Tapes & Flexotube Used By Sir Alan Cobham
Rec. Num. 14 of 14
Source: Aeroplane October 13th 1926