I am making all enquiries but the suggestion at the moment is that 1942 Contract S/M 2606 was for C29T chassis.
I thought it appropriate here to update Ford, Chevrolet and Dodge/Fargo listings, the former having an up-to-date Contract listing. I hope you have Broadband and/or patience but here they are:
1.
British Ford Contracts
Please note that this file is being upgraded as I can, with new information as and when it comes to hand. The list of Contracts does not necessarily correlate with those in the Census Number listing above it (in the table) so both must be read together.
2.
British Chevrolet Contracts
3.
British Dodge and Fargo Contracts Because this file will not save as htm very well it is a Word file so 'open' it when asked to do so or not.
4.
British GMC Contracts