Futher to the comments in the link to David's thread above, here's a poser for you. I have looked at LP2 Carrier 533 today. 533 was built by Victorian Railways in 1941. This carrier was restored over the last 3 years, by a person who managed to buy it off the original owner, who himself bought it off the Army in the later half of the 40's. That is is, it has been owned by one owner for 50 years, and he said he parked it up in 1950 when it was no longer running well.
The reason I mention it, is that it had ALL it's original road wheels. The two front Idler Return wheels had perished beyond use and were replaced, but all others were retained and returned to their original locations.
ALL 8 wheels are 5 spoke! The original owner never changed a thing and only had a couple of years use before parking it up in a barn. (
) The wheels bear builder's castings "D&B" and just a plain "S".