Thanks for posting that formula - I knew I had seen an ordnance manual for browning somewhere but couldn't find it. I had thought I had seen a formula for a lacquer with dragon's blood a long time ago - maybe for a Halls carbine - not sure.

Well, to make the subject a little more fun, the 1848 Ordnance Manual has a section added right under the above formula, with a formula to remove browning. It’s got some interesting wording. I’ll add it later tonight.