No. 153A Amplifier For Use With Head Telephone Sets, Issue
1, 1959-03-01

Emergency Reporting System - 520-Type PBX - Direct Line
Systems, Issue 1, 1958-06-01

SC2 Selective Control System, Issue 1, Aug. 1957

Common User Group Equipment - Air-Ground Voice
Communications System - Private Service Systems, Issue 1, Feb. 1958
(Not entirely clear from the title unless you're familiar with it, this
describes the SAGE air-ground voice communications system.)

General Description of SS1 Selective Signaling Systems, Issue
1, Oct. 15, 1959
(This one is interesting. It eventually became 982-325-100 but this
version is done on a typewriter with very neat but clearly hand drawn
schematics.? Guess they wanted to get the BSP out there quickly?)