Nicely done Andy. I nearly added the rotol badges and data to my Spit, but then realised that these are 'modern' additions. In the rare cases where the Rotol markings are seen on WW2 props, it appears that only the 'winged' badge was used, almost central on the blades, with the data close to the root, but, like you, i could find no evidence of these for the period being covered.