Altimeter-ICAN MKXVII A

[Cyrano]

Found this at a garage sale recently. A common WW2 piece used in many aircraft. If anyone can decipher the engraving that would be great! Possibly squadron/airframe specific.

REF No. 6A/1538. The 10.44 on the face may be date related.

[facthunter]

ICAN would be obsolete OK in an old Warbird I guess for looks. ( Single pointer) Based on a different standard atmosphere Same as the Old Nickel plated Brass Prayer wheel. I'd have one of those somewhere. Nev