This is a set of solid cro-mo cranks.  I believe they were on a 1999 Mach One, but not positive.  They are 180mm and come with the sprocket and GT ball bearing bottom bracket.  The cranks are in really nice shape with good threads and only a couple minor marks here and there.  The sprocket has one short tooth, and a couple teeth right next to the short one have a bit of wear.  The rest look pretty good.  The bottom bracket bearings appears worn - might need to be replaced.

Asking $45 for the set-up with FREE U.S. shipping!!!  Will consider reasonable offers!!!

...a few more pics.....