This vintage photograph is a Boudoir Cabinet Card. Boudoir Cabinet Cards are larger than the typical cabinet card. This photograph features a portrait of fashionable girl who appears to be in her teenage years. The identity of the girl is written on the reverse of the photograph. Her name appears to be “Eda Lestora”. What makes this photograph special is the photographer who took the photo. The 5″ x 8.25″ image was photographed at Monaco’s Excelsior Art Gallery at 183 Main Street in Stockton, California. J.B. Monaco (1856-1938) was a noted photographer in San Francisco but had satellite studios. A collection of his photographs can be found at the San Francisco History Center at the San Francisco Public Library. In 1875 Monaco arrived in the United States as an immigrant from Switzerland. His name was originally Giovanni Battista. He joined his brother in Eureka, Nevada. Louis Monaco operated a photo studio there and J.B. joined him in the business, thus launching a career as a photographer that would span 62 years. In 1887 J. B. moved to San Francisco where he was soon joined by his brother who died in 1897. During J. B.’s career, he distinguished himself with his earthquake and fire photographs. These images have been described as dramatic and journalistic. He documented much of early Nevada and Northern California history. His portraiture work of prominent San Francisco individuals and their families is considered to be exceptional. During his career, Monaco was described as the “Dean of North Beach photographers”. SOLD
THE CABINET CARD GALLERY 
After having subscribed to your posts for all these years, surprised to see my own town listed in your headlines! However, might I suggest a different surname for the subject of this photo? Rather than Lestora, it looks like Lertora, name of a family which has been in this county over a century. There is an Eda Lertora in the Stockton City directory for a few years in mid-1890s.
Thanks for your research and for discovering the exact name of the young woman in this photograph. Eda Lertora (1873-1937) is reported in the 1880 US census. She was seven years old and had four older siblings. Her father’s name was Peter and her mother’s name was Madeline. Both of Eda’s parents were born in Italy. Her father was a grocer. Eda also appears in the 1910 US census. At that time she was about 37 years old and living in San Francisco and working as a hotel clerk. There is a lot more information about her out there if someone wants to do the research. Thanks again for correctly identifying the subject of this photograph