Testing of eye conditions requires the services of eye specialists, who often had to travel around a wide area. This kit is incomplete, but demonstrates how optometrists needed a wide variety of instruments to diagnose sight conditions. Although incomplete, it also contains a booklet for the Standard Testing Set 1H-1 produced by the same company (Keeler) and briefly describes some of the instruments in the case.1 maroon case with two blue velour inserts'Note this side up' in Dymo tape on outside.assessments, keeler optical products