Quote" Belgium, Turkey and Argentina as signicant users of 7,65mm…"
By the 1950s, when this clip was developed, the Belgians were using .30/06 (most of their 7,65 equipment was lost or dispersed during WW II ) and the Turks had abandoned the 7,65 cartridge in the 1920s, going over to 7,9mm by the 1930s with their wholesale rebuilding program of all the 7,65 calibre rifles to 7,9mm (virtually completed by 1939).
The Only other country, which used 7,65mm into the 1950s was Argentina, which did purchase a large quantity of SAFN-49 rifles in that calibre, and only converted them to 7,62 Nato in the mid 1960s-early 70s.
So the obvious user of the “7,65” marked clip would be Argentina. (all the major contracts of FN49 rifles were in 30/06 (Belgium, Luxembourg, Congo) or 7,9mm (Egypt)> The Venezualan 7mm contract was small and “one-off”, no other country acquiring a 7mm in Latin America…Most who did try the FN49, took them in 30/06 (aside from Argentina).
Regards, Doc AV