Recently acquired one at an "estate" sale for a minor sum... It's a quite musty but very readable 3 ring binder will the entire Harris semi line as of 1 Jan 1972. Including their early ICs and some app notes. I've already scanned it for my files. If anyone on the list would like this thing free for shipping from 95006, I'll pass it on. The binder has mildew and water stains and it has a very musty smell about it... but otherwise in ok shape.