3 ms·
and a good scan is available at https://archive.org/details/bitsavers_decBooksBeng_37322315 https://archive.org/details/bitsavers_decBooksBeng_37322315
by bkjano 10y ago
and a good scan is available at https://archive.org/details/bitsavers_decBooksBeng_37322315 https://archive.org/details/bitsavers_decBooksBeng_37322315