A must before plastering

I have long wondered whether I should not afford such cover or even to trust good photos before plastering. Now after plastering I am very relieved to invest the few extra Euros on the decision.

"Only" with photos I probably would not rediscovered all doses and had hit some holes in the new plaster wall in vain.

Fits perfectly with matching doses. As a tip, I would but just after the plastering the "spines" again straighten otherwise sometimes arise strokes above or beside the can !!!!

I have only one day after plastering the cover away and was very happy with the plaster was not quite solid. But is certainly a matter of taste when you remove the lid.