
American formula on Stevens shotgun receiver
Deep, dark blue/black on an early 16 gauge pump receiver

German Formula on Brazilian Mauser Barrel
Contrasting blue hues between rust blue of barrel and heat blue of band

Winchester 94 finished with American Formula
Bill Stoney shows off his Winchester 94 finished with American Formula

Rust Blue Swiss Formula on Czech 98-22 Mauser barrel
Rust blued barrel contrasted with heat blued band

American Formula on old double
Henry Williams from Tampa, FL shows off his rescue with American Formula

Harrington Richardson Revolver using American Rust Blue Formula
I finally finished up the restoration on a Harrington Richardson revolver, and wanted to share my results and say thank you again for the help you gave and the product you make. -Timothy H.

Swiss formula on knife blades of O1 tool steel
Good morning, Bob,
I am using your Swiss formula on knife blades of O1 tool steel. The color is stunning! I'm curious whether the Swiss would be able to attack and color D2 tool steel. D2 is is high carbon alloy with a fairly high chromium content (nearly stainless) but I like the deep Grey-black of these O1 blades and would love to be able to create a similar patina on some d2 blades.
Please let me know.
Thanks
Jay G.