The original holster buckle used by Andy Anderson on his holster was manufactured by "North & Judd" (aka "The Anchor Company")
The oldest manufacturer in New Britain, and one of the oldest in CT., North & Judd’s business and identity evolved over decades before incorporating in 1863. - New Britain Industrial Museum
The company is ancient but is now owned by http://bucklesinternational.com/
It's highly probable that North & Judd was also the manufacturer of The Original Spurs.
Andy [Anderson] just bought the Anchor buckles as plain brass and hammered them. That buckle is sadly no longer available as Anchor are now made in the far east as is everything else. - John Skelton, Escort Gunleather