Vintage 5.25 inch floppy disk for the Apple II series, featuring the educational software Codes & Cyphers by Optimum Resource, Inc. Released in 1985, this Apple 4312 disk was originally part of a school district's inventory, as indicated by the property stamp on the label. A great addition for collectors of retro computing history and early educational technology. This is the disk only; no original packaging or manuals are included. Disk appears to be in good physical condition, though it is untested.