Help identifying marks on bracelet

[Ricardo3]

Dear Hive mind

I would be very grateful of your help in identifying some marks on a bracelet
Looks to be
AL
Crown
C18
F

Doesn't seem to match the more common hallmarks. Any clues?

TIA.

[Traintime]

Search function for Gold C18 leads to this recent thread with similar marks: viewtopic.php?f=21&t=57566&p=187036&hilit=gold+c18&sid=f286583ec1810c2bfe95951a4b2a2d28#p187036

[AG2012]

See here for Malta gold marks.
https://www.925-1000.com/Fmalta.html

750 (18 k) is the crown.

Regards

[Ricardo3]

Thanks for the replies