This one posted from Ibiza.
In Spain the IFCC International Mail Post has sold pre-paid tickets for
mailing postcards and letters within Europe a small blue label roughly the
size of a definitive stamp, many readers may have seen these on holiday
postcards from Spanish resorts. On arrival in the UK a Royal Mail PPI is
applied for onward transmission. Similar labels were used by TNT and now by
Spring (UK/Dutch/Singapore joint venture). Both IFCC and TNT labels are
recorded in this book, as are some colourful stamps/labels used for the
remail of tourist postcards from Italy. The stamps were sold at about 100
outlets in Italian resorts and cards bearing them could be put into special
Swiss Post mailboxes for despatch by priority service in Switzerland faster
and more reliable than the Italian PO service. The stamps, inscribed
'SwissPost' were issued in booklets and available to collectors through the
Swiss PO's philatelic bureau.
Gibbons stamp monthly