I've bundled all of the issues of the old Battletechnology magazine together into a single collection. This bundle contains:
Issues 1, 14, 18, and 19
Battletechnology, the Lost Issues
Battletech Center Operations Manual
Published in the 80s-90s, these issues sell individually for 10.00+ each, when you can find them, so are a steal bundled together for an overall price of 49.99.