Can anyone tell me where the drain & fill points for the gearbox are on my 95 1.6 90 Cabrio?

Can see only one allen nut about halfway on the front - seems too low for fill & too high for drain.

I think thats the fill you can see , the drain aint easy , its sort of at the bottom rear.
take a look at
https://www.fiatforum.com/punto-guides/102139-how-fill-gearbox-oil.html

Nice one!!!!!

Anyone know where the drain point is or shall I just top up. Will mixing oils matter? The oil has probably never been changed.

wavestar gave you info about the drain point.

As said the one you a refering to is the fill point.

Why is the gearbox oil low? if its lost some you must have a leak somewhere.