Finnish ordnance question

[Fred]

Most of us have probably seen the German 88s that Finland used after the war with their dark grey painted cartridges but what about other ordnance. I have seen German 105mm howitzer cartridges in the same dark grey and assume that they may be ex Finnish.
They used the Stug assault gun for a long time and I was wondering if the ammunition was repainted in a similar manner, has anybody seen any examples of this?

Fred

 

[Tmine35]

Finland painted German cases with similar grey paint, 105 mm and 150 mm.

However I have never seen grey painted Stug cases. Stug had electric primer and thus painted shell didn't work.