Shamrock painted on door of SIII military - meaning?

[rstl99]

I'm looking at a Series III for sale that's ex-military. Anybody know the meaning of a shamrock painted on the two front doors? I've seen this before but don't know the meaning. Net search revealed nothing. Thanks.

[SafeAirOne]

Anybody know the meaning of a shamrock painted on the two front doors?

A previous owner had a paint brush, a can of paint, and an affinity for clover?

[o2batsea]

Erin go braugh!

[Les Parker]

Motorway Design Engineer? (Clover leaf designer).
A quick email to the lads on the UK MOD forum might shed some light.

[wgnwheel]

Royal Irish Regiment 11108

Edited: from Royal Irish Guards to Royal Irish Regiment -

[wgnwheel]

11109

[slowmo]

It was a Lucky Charms delivery truck.