can anyone tell me more about this machine, i.e. who made it and when?

there are no ID markings on it except a number 173008 on the base.

I think the tension is via spring action.

the pearl inlay are 3 roses in middle of metal base along with 3 leaves; there is also a scattering of shell pieces all around the edge of the rectangular metal base.

the top of the machine has 2 metal thread holders on the main body and 3 metal tension(?) bars on the top of the head; all are vertical.

there is a maze type gold pattern/trim outlining the metal bodies.

it has 2 holes in the wooden base where one could presumably bolt it onto a fixed spot, plus it also has a rectangular hidden (hollowed out) spot in the base (bottom right under wheel) to hold accessories.

The bent wood cover locks with a key.has a metal (brass?) carrying handle.

Can you provide a picture?

Look Here:
ISMACS - Vintage, antique, and rare Sewing Machines (http://www.ismacs.net/home.html)

yes, but how?

Can you provide a picture?

got it! (I think)

Look Here:
ISMACS - Vintage, antique, and rare Sewing Machines (http://www.ismacs.net/home.html)

thank you, but can't match to any specific one....perhaps German origin....Frister & Rossmann? late 1800's?

what do you think?

Looks like the Superba D:
http://www.treadleandcrank.com/ebay/super1a.jpg

http://www.treadleandcrank.com/

yes, thank you! except w/o name, with an accessory compartment and different cover; this is the first I've seen with the scattered mother of pearl edging...

or....same page, 2nd line from bottom, right side: early 1900's Anker?

note: the flat head of mine is black and decorated (doesn't show in picture)