The manufacturer is not familiar to me, a lower case h with a short tail at the top of the h going right, formed from dots - this stylised h is within a circle
UNKNOWN MANUFACTURER - Multi-conductor connector
Made in Japan (most likely as this was the Country of manufacture of the original equipment)
Circa 1980's
Well formed black plastic body, opens up to two halves
Right angle entry
10 male pins, nickel plated
7 pins in a circle around the outside and 3 pins within this circle in the shape of a triangle
Each pin is 5mm apart from it's neighbour
Short lead is attached, this is just a 2 core cable - probably not useful but left in place anyway.
NOTE: Getting inside this connector is not immediately obvious.
On the rear of the connector is a 'coin slot' but it is part of the moulded body and appears to serve no purpose!
To open, very gently lift away the body from the plug area at the top of the connector, the plug section will then come away from the body
To reassemble, just reverse the process but make sure the little tab at the base of the connector is mating correctly first!
There are no screws, springs etc - the two halves just come together and are held in place by a 'lip' around the plug