A rare type of Officers badge?

[Faugh-A-Ballagh]

Has anyone ever come accross the officers collar dogs worn in the Antrim Artillery TA regiment of the Royal Engineers? I believe they were very similar to the old UVF badge, made of Bronze, with a red hand in the middle and the words Antrim Artillery on the scroll as opposed to "For God And Ulster". If anyone knows anything about them, when did this regiment stop wearing them?

John