Ok, here is where I am at.
We have made the drawings and then the prototype mount, but if we scale up the drawing that shows a width of 225mm and a height of 130mm, it seems incorrect as it is quite large and does not seem to be the same scale of original photos show.Ie Its BIG.
Secondly the two circles for the AH and Turn and Slip are shown to be just touching, again this does not appear on original photos (And makes it nearly impossible to assemble). A separation of approx 5mm between the two instruments seems to be about right going on original photos.Is this correct?
I have a VERY rough drawing believed to be from an original panel and this differs in that it is 210mm in length and 118mm high.
Lastly in the photo the Scnautzer posted the AH outside edge appears to be rounded,this is the first of this type I have seen , is it suitable for the A6M5 ?
The size of panel that SEEMS to be be correct is approx 205-210 X 115 MM X 20MM.
I am aware this my interpretation , but look forward to your feedback.
Kind Regards Mike