1241A Rtaflex – SEM – E. Goosens Pope & Co. London

Three different foulders:
SEM Réflecteurs X-Ray
Size: 14 x 21 cm., 19 pages. Date: 1926

Rotaflex S.A. - Bruxelles.
Size: 47 x 23 cm.

E. Goosens Pope & Co. - London
Metal Filament Lamps
Size: 11 x 22 cm., 12 pages