These images are Group 4 Compression TIFF files. They can be opened using various programs, including the Windows Imaging program that is included with Win95/98 (it can usually be found in the Accessories folder in your Start menu). Or you can use IrfanView, a freeware program. Most browser programs allow you to save these files to your hard drive by right-clicking on the link and using the "Save Link As" command.
Click on a thumbnail to enlarge the card image.