Hummm yup I've seen that type and tried it out with some success. I had some trouble with the front sight blade hooking on the leather and having to fumble a bit...some discomfort about the pistol jumping out in some circumstances as well.
I've searched the web and it seems the "period method" was a waist sash and the pistol(s) stuffed through about the waist and held by the sash, the other method is the "pirate bandolier"..... I know it works but...... both are just a bit out of style for my purpose and I cannot seem to balance two pistols on a baldric/bandolier style belt - I guess I can add my rapier and go full swashbuckler - but that's just over the top.....
I was thinking something similar but perhaps a bit longer, - more coverage, with a hammer loop or something - might do the trick - maybe attached to a bandolier belt over the shoulder...... that's still a possibility - Thanks Hanshi !
Really nice piece of wood on that pistol too!