There seems to be a bit of variation in dials used.
This is another undicarrage indicator that is advertised as an "original" Hurricane undercarrage indicator.
http://www.spitfirespares.com/Spitfi...truments2.html
You will notice that the arc at the top of the dial is not broken in the instrument modeled in the Hurricane, this would indicate to me that the indicator is of a different version to both types shown.
Cheers!