more thoughts from robert99 at the time and some more crops of the pics. shutter/georger
Robert99
bottom gauge appears to also have number 1 thru 12...could it be reading 7,000?


At the moment, I can't think of any aircraft instrument, other than a clock, that uses a modulo 12 numbering system. So until I am proven wrong, I am going to stick with the bottom instrument being an altimeter.
But I do need to clarify my remarks above about the number of needles. If this instrument is a recent manufacture 1971 era altimeter, it should have THREE needles.
The needle not mentioned previously, makes one-tenth of a revolution for ever 10,000 feet of altitude change. This instrument is typically a thin needle with a small triangle on the rim of the scale. Its purpose is to help avoid altitude mistakes for aircraft that fly at high altitudes, say up to 40,000 feet and higher.
The short stubby needle makes one one-tenth of a revolution for ever 1,000 feet of altitude change. The third needle is relatively slender and makes one complete revolution for ever 1,000 feet of altitude change.
All three of these needles move proportionally as the altitude changes. For instance, say that the aircraft is at 35,520 feet ASL. The needle with the rim triangle would be slightly more than half-way between the 3 and 4 on the indicator face. The stubby needle would be just slightly past half-way between the 5 and 6. And the third needle would be exactly on the 520 increment.
A more understandable illustration is if the aircraft is at exactly 11,000 feet ASL. In this case the rim needle would be just slightly past the 1. The stubby needle would be exactly on the 1. And the third needle would be exactly on the 0 at the top of the instrument.
I can't decipher the picture in question very well at all. But if the needle pointing between the 5 and 6 is the stubby needle, and the needle pointing to about the 3 is the third needle, then the altitude would be about 5,300 feet ASL.
If the needles are transposed from the above, then the altitude would be about 3,550 feet ASL.
I don't see the rim needle anywhere.
Robert99