1956 Dragonfly Rear wheel spacers

[BrmBrm]

Good morning everybody, or should I say anybody?
Still trying to find out the standard spacer set -up for Dragonfly with Britsh Hub.
For the speedo drive side -
Is there a spacer inside the drive unit?
Is there a nut outside the speedo drive, to hold it on when the wheel is removed?
Somebody knows this?

Thanks,
Dave

[BrmBrm]

Spacers now sorted, at least until re-check and re-fit the wheel.