Thanks to scanning by Daniel K6YIC, I have posted about 3000 pages at
https://www.navy-radio.com/manuals/mil-hdbk-161.htm
This includes the 1958 original plus the 1964 increments

As always, if you want a really nice clean printed copy of this or other manuals, Robert Downs WA5CAB is The Man
https://www.vendio.com/stores/wa5cab/

Cheers,
Nick England K4NYW
www.navy-radio.com