A unique snapshot of Victorian life has been revealed within a "historically important" collection of photographs.
The images captured by Capt Thomas Honywood depict scenes and people in Horsham, West Sussex, dating from 1851 onwards.
He curated the "breathtaking" album of 170 prints using a photography technique he developed.
The privately owned collection will be auctioned next month and is expected to fetch up to £70,000.
Austin Farahar, head of photographica at Chiswick Auctions, said they were "the oldest photographs of southern England that are known to exist".
Mr Farahar said: "The use of light and shade, the composition, its like an oil painting. He's basically creating old masters with this new form of art."
Chiswick Auctions said the album included "an array of arresting portraits of the inhabitants of Horsham, as well as buildings and the surrounding Surrey and Sussex landscapes, in the form of 170 calotypes and albumen prints".
Mr Farahar said: "Many of the works contained within are simply breathtaking.
"The album's contents, containing personal portraiture studies of the people and the places that he knew and loved dearly, communicate with such arresting intimacy a record of the world that Honywood inhabited.
"Before these photographs were discovered, every record or account of this part of England had been translated via the eyes and hands of an artist."
The Private Works of Captain Thomas Honywood will be auctioned by Chiswick Auctions on 28 October.