Thank you Larryd for that info.
It clears up the number situation and also when the two photos were taken.
So Bill's photo is showing Cec Weatherby during practice as it has no side numbers plate.
I have another anomaly regarding the 1933 photos.
This one below is also from Jeff 'bubbles44' on Flickr, which I now know to be taken as the bike was pushed from the pre-race "weigh-in". It is Ted Mellors New Imperial:
Also just recently Aherl from the Netherlands had a photo of Ted Mellors on Ebay and is was said to have been taken after he came 7th at the 1933 IOMTT.
Given that the numbers on these two photos are different, should I assume that when Aherl says taken "after" the 1933 IOMTT to mean a long time after - in fact it could be even another event.
In fact I also recall contacting Aherl in the past as that persons claims as to when photos were taken of another machine could not possibly have been correct as the machine that it was claimed to be hadn't even been made on the claimed date of the photo.
Given what I have just said, I think I have answered my own question. The discrepancy in numbers on the Ted Mellors machine must be due to Aherl being incorrect as to the date of his Ted Mellors photo?? Any comments on this conclusion or could have the numbers have been changed before and after the event??
Peter Shannon