Three WW1 Australian Rising Sun collar badges all different makers(which is not uncommon with these items).
I believe them to be WW1 but as you know they are very hard to I.D.
They came out of Bulgaria of all places which seems to point to Gallipoli as a place of origin if WW1 (may-be,but I am hoping ).
If WW2 Greece seems the most logical place of origin,which ever way there good little Rising Suns.
Thanks for looking and have a good one.
All the best