Summary: Using WinHex to open the floppy disk (not the image) shows that the actual JPEG file starts at cluster 42, which the directory lists as free space. DDT shows COVERP?1.JPG starts at cluster 0x01A4 (see Table X), or 420 decimal. Likewise, WinHex shows that cluster 420 belongs to cover page.jpgc .
Image Dimensions: 827 x 216
Image originally found here.