One of our members Jack Forbes through the Cyprus Study Circle email forum asked about the introduction dates of the various Registration Fees.
From information contained in the Ken Lewis CD on Rural Post of Cyprus 1886-2000 and from information supplied by member Alex Ioannides the following information was compiled.

1878 - 1908 rate 2pi

25/6/1922 rate 2 1/2pi

01/01/1925 rate 2 3/4pi

01/01/1941 rate 3pi

01/01/1951 rate 4pi