Not a expert on these items
Sold as untested and as I got it with some other such items.
WWII RAF instrument.
On the face
Mark 1B+
Ref No 6A/
No 41648/42 ( for year 1942)
On the back
A.M.
Ref No 6A/ (then the rest is scratched out but might have been) 942
Patent No
388514
492563
Also
64/1301
KDG7
The pointer is missing and needs a nut for the back to hold face etc in place
PLEASE ENLARGE PHOTOS TO SEE ITEM LISTED AND CONDITION
CAN BE PICKED UP FROM BOROUGHBRIDGE NORTH YORKS YO51 9AX.
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See other items
.THANKS FOR LOOKING.
PLEASE ASK ANY QUESTIONS THROUGH EBAY OR TEL RAY ON 01423 325394. I ALWAYS LEAVE FEEDBACK ONCE I HAVE RECEIVED SAME FROM THE BUYER THIS LETS ME KNOW THE ITEM HAS ARRIVED AND YOU ARE HAPPY WITH IT. IF NOT HAPPY WITH A ITEM PLEASE CONTACT ME BEFORE LEAVING FEEDBACK AND I WILL DO MY BEST TO SORT THINGS OUT. THANK YOU.