I last attended this event in 2014, and I'm sure it wasn't as big as it is now back then. Every class of exhibit was well represented, and it was easy to miss some parts that were in a sperate field. On Saturday, the weather was overcast with some light rain when I was there, so pictures not the usual bright sun/blue sky type.
In 2014, I took this of Aveling 12470

Looks better now,
There was a good range of engines, some in the working areas. A nice trio of Sentinels caught my eye.

3899

8803

9198
As usual there were plenty of Aveling rollers, but these two Fowlers made a nice comparison.

9005

19045
A brace of Wallis & Steevens.

2680

7090
There were plenty of others, this is just a flavour to maybe tempt others to add more.