Hello gmland prd

I need help on this one.
I have changed the topic heading to reflect the possibility this
is a first model (?).

prd has given very clear identifiers of the identifiers of this model:-
- straight-through chassis rails
- box section front axle
- piano hinge bonnet
- round gear motif with G decal
- transmission cover, chain, etc.

My questions are:
- Does the '25' refere to the first model being a 25" cut?
- Any suggestion as to a model number?
- There seems to be a possibility of a green/red colour scheme?

This is clearly a post to follow.

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Jack