If this is another suitable NG, Can someone out there let me know where I can locate 10 of these - either used or mint condition? Elco edge-conn having 41 gold-plated solder-tag sockets, in 2 rows, with its PCB guide slot,
2 guide-pin holes next to end-located M3 mounting holes, moulded in green plastic, 126mm long. These and shorter versions were popular about 25 years ago. Elco part number is 7024-041.