Smiths Industries Type 3B Servo Altimeter - RAF Jet Aircraft French Box does have a little

Box does have a little age related shelf wear

Stealing in original bag

We don't really want to sell it

but the Le Mans 05 motor does run

Suitable for model airplanes from 30" to 54" wingspan

Smiths Industries Type 3B Servo Altimeter - RAF Jet Aircraft French Box does have a littleUnusual thing! Type 3B Servo Altimeter by Smiths Industries of Cheltenham. Rated from 2265ft to +40,000ft, putting it out of the range of propeller driven aircraft. Had also been stamped as having "Mod" codes done, possibly indicating that it's a flown example, as does the included instrument panel mounting bracket. I know very little else! If you need any more info, please ask.