VLG Weißwasser - Prof. Wilhelm v. Eiff, Stuttgart

a single glas which has been made for the "physikertagung stuttgart in 1935" / this and "der geist bewegt die materie" and a horse riding on a flash is wheel carved on it.

underneath it is signed.: K. G. S. Stuttg. ABT. Prof. W. v. Eiff, and with the VLG.