13052RKX16,
10/12/1962,
10L x 3-1/2',
Catalog No. CLC187-ZB,
Metal Cabinet Bench Lathe,
It does have a hardened bed, even though it does not have the "Flame Hardened Bed" badge.
The "X" which indicates "special" in the serial code system,
is (on this particular lathe) for the "cam-lock spindle" which this lathe shipped with.