[ExGeeEye]

I'd like to find a chest-carry rig for the S&W Mdl 10— I've heard it described as a “tanker's” or “aviator's” rig, and perhaps the same rig was used in both professions. I haven't been able to find it on eBay, and may try your link; but if you know a shortcut I'd appreciate it.

I'd actually prefer a used, broken in item than something new. I'd expect it to be in black leather.

[300winmag]

I don't think you'll find the holster you're looking for at Colorado Gun Sales, unless it was made in Switzerland.

It sounds like you want a M3 or M7 "tanker" holster. They were intended for the M1911, but the government also had similar holsters for revolvers, mostly Colt and S&W with 5" barrels.

A very good discussion of pros and cons, and sources is here.

If you're going for a leather holster, go with something new, and be prepared to pay about $100 for it. You can get similar holsters in synthetics for $30 and up. You want new leather because you can wet-mold it to your handgun as part of the break-in process. Leather is pretty delicate, and something 50-60 years old is just a sack, rather than a critical part of your weapons system.

Don't feel too bad about the price. Serious CCW holders may try 5-6 $100+ concealment holsters before finding the right one. You'll only need one for open carry. A good selection of military-type holsters is at El Paso Saddlery.