I have completed scanning the manuals for the Cipher 1/4" Tape drive and its QBUS interface, along with some Plessy software that came with it. They are posted here: http://chiclassiccomp.org/docs/index.php?dir=/computing These aren't in my hard copy preservation pile, so if anyone wants them (one 3-ring binder, about 3" thick) I will send them to you for shipping cost from 60070. Otherwise, to the recycle bin they go. -j