Is this the stopcock?

[Ruffstuff]

Just in the process of buying a 1995 house. Doing a 2nd look around the property to see what needs upgrading, thought I determin where the stopcock for incoming water was. I can only assume that what I managed to picture is the stopcock, it a bit difficult to obtain something better as the owners daughter (she had no clue) was there. Never seen anything like this before, there is a plastic covering on the outside as well. Would be interested to know if anyone can explain or at least point me to some relevant info, please.

 

[ShaunCorbs]

Yes the meter is on the other side of that wall

The black lever is the stop tap