C-64c ?? Weekend finds...

Howdy: This last weekend I picked up a Commodore 64-C complete with a 1541 disk drive and a 1541 ][ drive, about 6,000 games on 400 disks, printer, manuals, Vic disk drive, tons of cart games, etc., etc.... all for $30. Anyway, here's my question: I had never had a C-64c before and right after I picked this one up wandered over to another place and saw something that looked similar to it. It wasn't label Comodore or anything, but did have the C= key on the keyboard. The keyboard was identical to the C-64c I have except just above the keyboard the ======== (lines, vent, whatever) doesn't go all the way across. On either side of this vent, whatever, there are little 'bays' I guess that you might expect a label(s) to fit into. Although there are none. On the back all it says is manufactured is southern Australia. Could anyone please let me info. on this. Also, does anyone know whwere to find a mouse for the C-64c that will work with the Geos software I have or other. Thanks, CORD //*=====================================================================++ || Cord G. Coslor P.O. Box 308 - 1300 3rd St. Apt "M1" -- Peru, NE || || (402) 872- 3272 coslor(a)bobcat.peru.edu 68421-0308 || || Classic computer software and hardware collector || || Autograph collector || ++=====================================================================*//