Older Akron Style 7980 6.00 NH Piston Intake Valve Firefighter Fire Department

Here's a pretty decent older style Akron Style 7980 Piston Intake Valve 6.00NH (a little lighter than the new ones). The valve handle spins easily and opens/closes the valve properly. This one has seen some use. It has some scratches and wear (please look at the pictures closely for overall condition). I do not see any physical damage to this unit, but it is missing the Storz cap retaining chain (easy fix - see pics). From the previous department - I was told that this works as it should, but that they were replacing or changing out existing equipment.