Varnishing has been used for collodium wet process negatives (used before the year 1890) but certainly some of later gelatine based negatives are varnished as well (minimally to the year 1901). Help us exactly date this photograph,please!
This is automatically generated preview from raw scan. The quality of automatically generated previews might vary. The images are scanned in 16-bit depth and high resolution and it is possible to tune them, retouch the scratches and make details. See the galeries.