1st Canadian Centaur Battery

I came across an interesting little tid bit in CMHQ Report No. 139. Near the end of the report it mentions a short lived Canadian Unit, 25 days. 1st Canadian Centaur Battery (SP) equiped with 95mm guns. I have searched through my references and cannot find anything about the equipment this unit used. No mention of a chassis type nor can I find anything on a 95mm gun. The unit was deployed with the 6th Airborne Div and was disbanded when the Div returned to England. The guns had originally been manned by the Royal Marines.