Gold coin info

[dangelo]

Hi experts!

As always - apologies for the low quality photos.  And the fluff of microfibre on the queens face.

I can find only very little info on this very little gold coin.  1999 Gibraltar issue.  It has no face value stated - only 1 gram so would it still be a coin technically?  

House of Platagenet featuring Richard 1st.  

I guess I'd like to know which mint made it, confirmation of it being 999 gold and maybe even the mintage.  

I plan to list it in the for sale section but ideally with a little contextual info

if you know about this coin, have one / have a set please comment and enlighten me.

D'Angelo