Details
Block Notes stereo no. 7583
Gaumont, Paris; 6 x 13cm., with a pair of lenses and single metal slides; a 4½ x 6cm. Block Notes no. 10517 with magazine back
Gaumont, Paris; 6 x 13cm., with a pair of lenses and single metal slides; a 4½ x 6cm. Block Notes no. 10517 with magazine back