Hi Olfarts
1. Dating your van??
Check on the backs of draws, inside cupboards, under beds for pencil marks or dates handwritten by the builder. Sometimes the builder would put his/her mark somewhere.
Also there may be a manufacturers date/docket stuck on a part that was supplied from somewhere other than the factory where the van was built.
I found a "Sorbys - Newcastle" delivery docket stuck up on the back of the red sink in "Rosie" during her recent overhaul. No date on it but it did lead me to sort of think the van was built in Newcastle by Walsh caravans in or around the mid 50s.
Next....Have a look at the wheels and stud pattern. If the axle appears to be the original one from new you can get a ball park manufacture era from the wheels and stud pattern.
1940s and early fiftys vans tended to have 15" or 16" wheels. Ford prefect, Early Chev 5 and 6 stud, FX/FJ Holden etc.
Most of the vans from that era have an offset or "dropped axle" to counter the hieght of the tall wheels.
By around '56 onwards wheel sizes started drop to 13" as Later model Holden/ford Hubs and stubs became plentiful. likewise the straight axle became popular.
Mechanical brakes where still being fitted on vans well into the late 60s and beyond.
Another rough indicator of era build is aluminium windows. Some might argue here , but i am of the opinion that most vans built after 1956 or thereabouts have aluminium windows. Once one large van manufacturer went to aluminium windows most of the rest followed. The buying public more or less forced the van manufacturers to do so.
Having said that i would imagine that smaller backyard/homemade concerns would have stuck to the cheaper timber windows for a few more years.
2.
Canvas was used on the roof to improve waterproofing. There is a few theorys on how it was applied. A thick coat of silverfrost then roll the canvas smooth onto the wet surface. Roll the edges of the canvas over the edge of the roof and tuck it in under the j mould . seal that joint with tar paper type tape.
Its best not to disturb the canvas or the joins unless absolutely necessary. They alo used canvas tape on the walls where the sheets join to help seal them . Some vans have 1/2 round timber moulds on these joins.
In the 4 years i have hung around here i.. like you have read a lot on the forum, discussed a lot at gatherings etc. One thing i have noticed is that when people first buy thier vans they tend to post that they have bought a van from the 30s or 40s . Once we get a good look at them about 90% of them turn out to be from the 50s.
3. Original as first made???
As JBJ said, this question can be a contencious issue.
Its been done to death on the forum.
we did not reach a concensus one way or the other.
The fact that those fore and agin keeping things as original as possible are still here on the forum is testament that we have accepted each others view points and have learned to live in harmony with each other here on the forum. ( even though i do stir the pot on the odd occasion
)
Please dont think that i am treating your question flippantley.
But it is best answered by yourself. You paid for the van . You do what you like to it without fear of contradiction from anyone no matter what path you take.
Just love it , work on it ... and most of all enjoy using it when you are happy that you have it finished the way YOU like it.
Now get your act together and master photobucket so we can see some pictures of it.
In closing
People may come on here now and correct me. I am happy for that to happen. Its all about learning as we go.
Keep the questions coming.
Reddo