Speed Limit stickers?

The Italian Polizia Stradale were always keen to raise funds.
As M. 14 says trucks only need to show signs according to country of origin, however spending time at a roadside arguing etc etc.
I know of more than one UK company putting those It. speed stickers on their trailers. I’m only guessing that could be the motivation here, no evidence, but a possibility?

Sent from my GT-S7275R using Tapatalk