WOW, WOW, WOW! I feel like I've won a lottery! Toby Lyn, I am so pleased to hear from you. Just this week I found a Stahlschmidt family history website from Germany, http://members.kabsi.at/familienforschung/stahlschmidt_english_william_preston.html
, which includes a photo of a Stahlschmidt rolltop desk similar to mine. Yours is much more elaborate but it also shows common roots with the Wooten line, out of Indianapolis.
I'll try to figure out if we can post private messages from this forum and will definitely be in touch!