Dating old photographs uk
The carte de visite was quickly replaced by the larger cabinet card.
Our holdings include major collections taken by the RAF and the Ordnance Survey, alongside the work of Aerofilms Ltd.
These were produced from an underexposed glass negative which was then covered with a backing of black velvet or shellac. Originally known in Britain as collodion positives they were better known by their American name of Ambrotypes.
Pictures are normally clear and sharp and when moved under light they can be seen to revert to their negative effect.
It argues that much can be learned from such pictures, even when the regiment can't be identified, and even when the researcher has no pretensions to being a military historian.
A head-to-toe examination of uniform and accoutrements identifies possible dating clues, and a separate section gives extra assistance with photos from the two world wars.