Connector identification and supplier?

[M1ECY]

Hi,

Following Ham Radio, I agreed with one of our regular colleagues that I would take on a 1960s build Amateur Radio Transmitter.

There is one module (yet to be identified for purpose) that is missing - in any case, once the required function is found, I will need to build a replica of the missing part.

To do this I need to identify the type of connector as shown in the picture attached - I need to source one plug and one socket of the same specification

Can anyone advise what I should be searching for?

Transmitter connector.jpg

Thanks
Sean