Sept 26 2013 Mac 512K cases all photos taken outside in partly cloudy skies. Shadows are still very difficult to avoid. Digital cameras are VERY good at showing slight differences in color, but also lose differences when objects are very bright. best 512K is "F5113" (first five letters of serial number) Mac 512KW, uniformly colored, very lightly faded, a little physical damage uniform color, no blotches small nicks on edges around front of case front left corner, minor damage, nicks on edge back left back right front left front front right next best 512K is F6462 Mac 512KE, slightly darker faded sides darker than front front corner front back corner Comparision of fronts for F6462 left and F5113 right Note that the right-side 512K is slightly lighter. Comparison of four 512K fronts, best on left leftmost is F6462, then F4212, F5363, then F5455 See that F5363 has a pale rectangular patch near floppy drive - removed label F5455 is darker and has a gouge on the side F4213 has some lighter patches on front from cleaning, wear F5113 is not included.