Available for purchase are a Meco Weldmaster 63103 combination torch body with a 3201-T cutting head and an L-0 size tip. This vintage oxy-acetylene torch was made by Modern Engineering Co (MECO) in St. Louis, Missouri, USA. It is used and appears in good condition. I have not hooked it up to gas, to test it. Please examine the photos for condition.
Modern Engineering Co (MECO) was one of the top gas welding and cutting equipment manufacturers. Sadly they ran into troubles and were bought by Victor in 1999. The entire MECO line (Weldmaster, Aviator, Aviator Jet, Cutmaster, etc.) that was in competition with Victor's torches was killed off (many say the better torch lost). The few survivors from MECO were the Midget torch and "O" and "P" type regulators. Victor still supports the Midget torch and regulators, but everything else was abandoned.
Parts are still available with some searching
Most MECO regulators and torches are rebuild-able. Some of the welding, brazing, and tips are still available new from aftermarket manufacturers. Original MECO welding, brazing, and cutting tips are still available here on eBay.