IBM 3670 Brokerage Communication System - need old 1971 manuals

Can anyone suggest where I might obtain an original or copy (they are less than 50 pages) of 2 IBM manuals: GA27-3048 IBM 3670 Brokerage Communication System Concepts & Configurator GA27-3049 IBM 3670 Brokerage Communication System Installation & Planning Also, if anyone recollects working with such a system (Merrill Lynch in early 70's?) I would appreciate a description of how a broker or analyst could specify stocks in which he/she was interested along with some price limits or ranges and then receive a message alert on the terminal if limits were exceeded during real-time monitoring of trades in that security. In other words how were price alerts implemented. Email me directly via jimkeo(a)multi-platforms.com with Subject "IBM 3670" if you can. Thanks! - Jim Jim Keohane, Multi-Platforms, Inc. "It's not whether you win or lose. It's whether you win!"