The Air Ministry certainly did produce instructions for pilots of captured enemy aircraft. I have never seen one in the format of the blue or orange RAF Pilots Notes that we are all familiar with. Attached is a photo of the instructions for the Junkers 88.

[ATTACH=CONFIG]227531[/ATTACH]

Although i would agree with the general consensus, before we can say with 100% certainty that it is spurious, could you take a photo of the rear of the case. The Americans produced instruments on behalf of the Air Ministry and i have seen seen Anson and Hurricane fuel gauges with the same font /number 3 as shown on your fuel gauge. Canadian Hurricane fuel gauges were generally produce by Liquidometer Corp and are usually marked with this. Could it have been possible that they also manufactured Spitfire fuel gauges?

Yes, it is a Canberra throttle box. There was one almost identical on ebay just a few days ago.

Gin Ye Daur

Its from a Boulton Paul gun turret.

Ollie

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I think a clue can be found in the packaging. I would say it was destined for the export market. Many countries such as France used British manufactured instrumentation in their own aircraft industry not just limited to military aircraft but also civil.

The only difference between the 23-E-50 and the 23EX is that the inner bore of the spider is splined to fit a No.5 British shaft and the seals are a little different. I must admit i was not aware of the exclusive use of the No.5 shaft on all Canadian built Merlin powered aircraft. I had always thought that in Canada they would have SAE 50 shafts as they mostly used Packard built Merlins. Do operators today use the 23EX?

26VC = VC10
26FS = Wyvern

64KK = Goblin tools
64WW = Double Mamba tools

Ollie1