3rd Dragoon Guards shoulder title question

[3dg]

Hello good people of the forum.
I am at present putting together a frame of 3rd Dragoon guards badges.
I have seen on a couple of photos of the 3DG's in the Boer war and they are wearing what appears to be a three piece title, 3 above DG, whether the DG is separate is unclear.
Does anyone have an example of this title, or a photo of it being worn please?
Also, when did the standard 3DG title come in and did it replace the separate one or were they both worn?
Last question, has anyone seen a 3 piece one for sale anywhere please?
Your time and help are greatly appreciated.
Thank you

Chris