Longacre Camber / Castor Gauge.
Used twice on my Viento. I'm unlikely to use it again.
As new condition with documentation, in its plastic case.
I cant figure out how to put an image in this post, so happy to send a picture by Email if you want one. But its this model:
https://www.demon-tweeks.com/longacre-castor-camber-gauge-lon78260/
£150 plus postage at cost.
Geoff