Greetings Guy, I suppose all things taken in to account,the roads the tyre,handling,ect doing 95mph on this could have been seen as demanding as the flying machines of today,

This is the one you need for 29, I can get measurements tomorrow if you need,they are availably to buy.

I think its 33 the engine pre fix and the chaincase are 33 also the external valve lifter,thin flange barrel also,the forks may be slightly later,they have cast lugs on, A really nice looking machine.

The strechy type spring was used for 29/30. it seemed to be a craze for a few makers as well as Ariel. Great pic,I have a few of similar period.

Try single spares for the knob and the field stand clip and swivel lug at the top.

This any good for you,there are also a few others listed,I don't know what the quality is like,thher are also field stands made in india.https://www.ebay.co.uk/itm/TOOL-BOX-RAW ... SwCd9dsQqR

Hi Alan,the Y box is the one that has the number on, it does have the drain bung in,all the rest are as Nev says as cast finish and some even have grind marks in them and not cleaned at all.I have a couple of matchless ones that are also rough finish.Hope this is of interest.

some more,hope they are of interest.

Here are a few I found this morning.

Sounds a good idea,it may be worth a try,if the answer is no the other way maybe to see if any other wng owners would be interested in clubbing in together.I don't have much literature on wng but will look in the next few days.