Victor is the local company known for quality and serviceability... I just had an old Victor medical regulator repaired... don't know much about the company today one way or the other.
My guess is that you have a 315 valve body with both a cutting torch attachment and various size welding tips.
You should be all set for gas welding and "Burning" steel.
I bought the same model when I became a certified welder in another life... also the smaller set and jeweler set too.