Betty, I have just bought a hand scanner which rolls over things. Th sort which looks like a square cross section stick. I'm intending to combine it with stitching software to make large images of old photographs. (google "scan and stitch software".) I haven't done the stitching yet, so can't report on quality, but the company whose software I have bought (Serif) does excellent panorama producing software, which must use the same sort of code. When you have your image at high res, you could get a printing company to print it out at whatever size you want, presumably.

Penny