The most common usage of the 4 piastres stamp was to pay for the double weight foreign letter rate. It comes in two shades of green.
The Four Piastres stamp in the imprimatur form.
The 4 piastres stamp on a registered cover postmarked Larnaca 27 December 1892 to Germany. Two piastres paying for the foreign letter rate and the remaining two for the registration . In addition to the red “R” in the oval box on the upper left of the cover and the blue crayon marking signifying the registration, there are two additional stamps on the back placed in Germany with numbers 320 & 321. An arrival back stamp at Munich of 6 January 1893 is also present.
The 4 piastres stamp on a pre-registered cover , paying the double weight letter rate. The stamp is postmarked Limassol 28 October 1894 and in addition there is the customary red oval registered cancellation of the same date. On the front, the red registered cancellation upon arrival to London can be seen, dated ?? November. On the reverse there is a second Larnaca cancellation and a Colchester postmark that was applied upon arrival on 9 November 1891.