Blue star dynamo cover screw

[Jean-Luc]

I have lost the central tiny screw that holds the covet on my 3 brush 1933 dynamo.
Could you give me the ref of it ?
Where to get it too ?

Thanks !

[Bicycle repair man]

It is 2BA size. They are easy to find on Ebay

[Jean-Luc]

Thanks a lot.