Does anyone have a recommended source for "Draftac" (or the equivalent) smokebox spark-arrestor woven wire netting?

Southern Pacific oil-fired locomotives used:
- mesh: 0.20" x 0.80" (mesh = center-to-center wire spacing)
- wire diameter: approx. 0.060" (~1/16")
- open area: 63~65%

Thanks!
Doug Debs
Golden Gate Railroad Museum
e-mail: doug.debs@fcimg.com
tel: 408-433-2672 office, 650-704-1487 cell

Try a supplier called www.mcnichols.com; they have all sorts of wire mesh, as well as perforated sheet steel. They send out catalogs called "The Hole Story", and have distribution centers all across the US. You should be able to match up your size with something in their listings.