James Keeler & the Crossley Reflector

 
James Keeler
 
The Crossley Reflector (c 1900) at Lick Observatory.
 
 
The dome for the Crossley Reflector.
 
Andrew Common's 36 inch telescope in Ealing, where it was called the "Calver" Reflector.

One of the earliest glass mirrored telescopes was the 36-inch reflector built by British amateur astronomer Andrew Common. Common's telescope was built around a 36-inch silver-on-glass mirror that was mounted on an equatorial fork and used as a photographic telescope.

In 1885 Common sold his 36-inch reflecting telescope to Edward Crossley of Halifax, Yorkshire, England, who donated the telescope to the Lick Observatory shortly after his retirement from astronomy in 1893.

Within a short time the Crossley reflector was put to good use when James E. Keeler initiated a program of nebular photography with it.

The last image is of the 36 inch shortly after it was made by Common, in Ealing (England), then named the "Calver" Reflector.

Very nice history of the Crossley can be found here

A wonderful catalog of NGC/IC discoverer's has been compiled by Wolfgang Steinicke and can be found here