DUNLOP MK III VALVE - 27VA/4931 - AC 12708 - OVERHAULED
Here we have a boxed original Dunlop MKIII Valve for vintage aircraft. This item is still sealed.
The box shows the following.
RAF Section Reference - 27VA/4931
Dunlop Part Number - AC 12708
There is the letter R in a circle on the box which I assume is to signify reconditioned by Dunlop.
A nice warbird part. No airworthiness is implied