I found this on a British website … Fact or Fiction?
In the 1877 Remington catalog, there was a London office but no mention that holsters in the product ever made or supplied by them.
http://www.6gun.co.uk/6gunmk2/blank_western.htm
"The wild west"
Hand made to copy a holster supplied by Remington in 1873
Perfect for any long barreled 6gun Army, navy or Remington
£28 ...RIGWW Sales only in the UK
Black or dark brown