3" Mortar Carrier

[Brian Johns]

Hi
I'm new to the carrier forum.
Currently restoring a British riveted 3" Mortar Carrier here in New Zealand.
I 've been able to research some of it's history thanks to it's brass plate, No.T84089.
I obtained a copy of it's contract card from the Bovington Tank Museum, this told me it was one of 2000 made by the Wolseley Motor Company.
What I'm not sure of is the type of carrier, I've always believed it to be a Mk1, can any one help with this information.

Brian