Looking at info on the printer, etc...the years 1894 to 1899+ are looking pretty solid.
The v-waistline & lesser puffed sleeves as well...although as stated, may have been worn for years.
The decade was a back & forth love of puffy sleeves, layering, & big collars...
The Bridgerton series pokes fun at some of the eras more far-out-fashion-musts, methinks...
A. Your photo back mount has potted peacock feathers... his second print back design (C below)
Starting using c.1893 or later as advertises carbon prints ( pigmented gelatin rather than metals)
B. Found this with same updated back, with a waaay off base dating of ca. 1860s?
Talented infant as the photographer's birth was registered in 1858!!!
https://collections.vam.ac.uk/item/O1462020/a-portrait-of-a-woman-photograph-a-simmons/C. Arthur Simmons photo back from 1884 has a different back print ad (a potted bamboo)
NOTE* Astley's Amphitheatre appears online as dated 1773 - demolished in 1893!...
- Advertised as an art studio - Firstly as a portrait painter, then photographer
He could enlarge to any size then finish in oils, watercolour or crayon!
One could add texture, mimicking brushstrokes, with results much like a modern giclée!
Lithographs were around astonishingly early, so who knows when this method began
He advertises his tintypes as: "Instantaneous using a new patent apparatus"
https://tupap0.wordpress.com/wp-content/uploads/2025/10/simmons-b.jpg - The mount was produced by Reeves & Hoare - Lithographers, Book Printers
Who made & also likely supplied to Simmons, a range of photographic equipment...
...including manufacture of artist colours, to professional studios during the 1880s.
This lovely page's contributor found lots of basic info on A. Simmons
His occupation switches on censuses & docs from photographer to confectioner.
https://tokensofcompanionship.blog/2021/07/01/cycling-enthusiasts-at-a-rally-in-london/