desconocido - Lote de 24 placas fotográficas estereoscópicas Autocroma (Autochrome) - Paisajes, jardines y vistas

Lot of 24 color stereoscopic glass plates (Lumière Autochromes), dated approximately between 1920 and 1930
Coastal landscapes, seascapes, flowering gardens, parks and natural settings (some with handwritten inscriptions such as "Chutes Du Giesbach 1931").
Technique: Autochrome (primitive color photography process on glass plate).
Vintage condition variable with signs of age. Some plates retain vivid colors and good transparency, while others show halos of crystallization, emulsion deterioration at the edges, or discoloration visible on the light table. Please review the detailed photographs carefully to verify the exact condition of each piece
The photos are part of the description.