Old school gauges.

Hello all. My first post after lurking for a long time. I am from the across the pond.

I was saving this aerospace 2 in one gauge for something good...
The zero adjustment is on each pointer.
7 lbs with 72" valve hoses.
It does not matter if you mix up the high & low sides!
The vacuum scale is strange. I think it is gauge not absolute.
Attachment 14950Attachment 14951

One on the Weksler Regal range.

Similar to the ref BB gauge shown here....
http://www.weksler-gauges.com/gauges/special_gauges.htm