[DMcMahon]

Rechecked and there is no latch mechanism on this particular TK 14. Like Mark's above it is blue and white with the 2 red dots on the Pause and Stop keys. It is serial number 58127.

Also noticed that the copper sprung arm that makes contact with the Supply spool table when Pause is pressed is a little different from the TK 23 with latching mechanism. On the TK 23 there is a round rod (that moves a little when Play is selected) that goes through a hole in the end of the copper arm, in this TK 14 there is no round rod.

David