ca. 1870’s, [double self portrait with Ignác Šechtl as both a laboratory worker and a retoucher], Ignác Šechtl
via the Šechtl & Voseček Museum of Photography

ca. 1870’s, [double self portrait with Ignác Šechtl as both a laboratory worker and a retoucher], Ignác Šechtl

via the Šechtl & Voseček Museum of Photography