Glenn's username is just that - Glenn. He's been traveling but he does has a tutorial available here.
http://www.quiltingboard.com/t-97670-1.htm
I'm going to try Charlee's recommmendation of Howards's Restore A Finish and Feed-n-Wax on mine. Glen isn't fond of this combo because it darkens the wood, but it's what I have here. It did a nice job on a 1930's dressing table, but my 1904 machine's cabinet may need more than this. I know my 1924 cabinet will clean up well, but it's in much better condition.