Vintage SHARP YO-600 Electronic Organizer W/ Manual Untested

CASIO Business Organizer Scheduling System SF-5580 Illuminator /126KB

Sharp EL-6620 Electronic Organizer Memo Master 35KB with BackLight

Vintage Casio Boss SF-5300x Business Organizer Scheduling System 64kb

CASIO Executive Business Organizer Scheduling System 256 KB - Great Condition

Casio SF-5780 256KB Business Organizer Scheduling System Illuminator

Vintage CASCIO Business Organizer Scheduling System SF-5590SY 128KB PC sync