Maltese Cross spoon 917 silver

Hello - first ever post here. Does anyone know the date of this spoon, if it is indeed Maltese silver and whether it has any value? Any information gratefully received!

It measures about 11cm long, has a twisted stem and what looks like a Maltese Cross finial. The marks on the reverse are, from left to right: a Maltese Cross, ‘917’, ‘F’ and an ‘H’ shape that could be a ship (see pictures). Apologies but my camera isn’t great for close-up stuff.

Thanks once again.