No, contour plugs won't go into standard Italian receptacles. The pin spacing of the contour plug is the same as the 10A plug but the pin diameter is like the 16A plug and the 16A plug has the pins spaced further apart. Unlike most ungrounded receptacles Italian 10A receptacles don't have much marging concerning pin diameter, so you won't be able to force a contour or Schuko plugs into a 10A receptacle without breaking the plastic around the holes. Only Receptacles that take both Schuko and Italian plugs (usually power strips) have larger inner holes.
Seems to be all fine though, as the Greeks seem to have standard plugs.
