These are the fascinating photographs of brothels and the women who worked there in the Old American West.
The rare pictures that were taken around the turn of the 19th century in the state of Colorado show 'soiled doves', girls in white dresses who came to boom towns such as Denver to keep the working men company.
Other photos feature the infamous bordellos, showing madams, men, women, maids and even babies having a time of it in the Wild West.
The highly mythicized American Frontier saw economic workers traipsing out the Western states of the Union in search of lucrative work.
Boom town and villages that struck gold became magnets for prospectors who would then flock to a town to work on the mine.
One such Coloradan town was Cripple Creek where gold was struck in October, 1890. The town's population increased from a sparse five hundred to a bustling ten thousand in just three years.
Treaties with native American nations, military conquest, the building of farms, ranches, and towns, the marking of trails and digging of mines all drew men westwards to the Frontier for work.
Almost without exception, pioneer mining camps, boomtowns and whistles-stops became home to at least one or two prostitutes - if not a roaring red light district.
Prostitution contributed heavily to town economies in the way of business licenses, fees and fines. A number of red light districts evolved into the social centres of their communities.
It was not uncommon for bordellos in Western towns to operate openly, without the stigma of East Coast cities.
Gambling and prostitution were central to life in these western towns, and only later, as the female population increased, reformers moved in, and other civilizing influences arrived - did prostitution become less blatant and less commonplace.
One photograph taken in Cripple Creek shows a bordello called The Club. It's a quintessential Old West sin palace with musicians, the madam, housemaids and the ladies that wore white brothel gowns hanging out of the upstairs windows.
The white gown was the uniform for a prostitutes in the Old West. Despite their appearance, these girls were tough, many of them would engage in robbing clients by poisoning their beer.
Pictured: Unidentified Denver prostitutes, Colorado, circa 1890. So-called 'soiled doves', girls wearing white dresses, came to boom towns such as Denver to keep the working men company. Workers from across America came through Denver while traversing the US