Disco 2 Lift, I how do I know if my D2 has had one?

Sorry for such a newbie question.
On My D2 the previous owner had coils popped in the back so no air system now, how do I know if it has had a lift? This is all a bit new to me as I only really know bigger commercial vehicles, on these we just bung on bigger leaf springs and shocks to lift a vehicle, so is it that the coils are longer and if so what's the standard size so I can measure or are there any packing plates added or something else I can look for?
Yes such a silly basic thing to not know.

HI KB,

Std height is measured from the ctr of wheel to the wheel arch, which if I remember correctly for springs is 500mm on the front and 483mm on the rear +- 15mm.

Cheers

oaky doaky Neilly I will get out my tape measure when it has stopped raining / sleating out there