The hydrofoil depict on this stamp is one of the PT-50 type and identified as the PRINCEFOIL by members of Watercraft Philately.
Built as a hydrofoil under yard No 65 by Cant. Navali L. Rodriques, Messina, Italy for Det. Stavangerske Dampskibsselskab, Stavanger, Norway.
30 April 1960 launched as the VINGTOR named after a Norwegian mythology figur.
Tonnage 131 grt, 71 net, 14dwt., dim. 27.80 x 6.11 x 3.51m., over foils 10.70m., draught 3.5m, foil- born 1.42m.
Powered by two Daimler-Benz 12-cyl. diesel engines, 2,700 shp, speed 40.0 knots.
Fitted out with 105 reclining aircraft-style seats, 11 in a small cabin on main deck and 38 and 56 in the lower and forward and aft saloons.
Crew 4 and 2 hostesses.
May 1960 delivered to owners during a ceremony in the Straits of Messina. Building cost NOK 3 million.
She was shipped from Italy as deck cargo to Norway.
15 June 1960 in the service between Stavanger and Bergen a distance of 108 mile. The voyage took 3.5 hours. She was only used during the spring till autumn season and during the winter months out of service and laid up in Stavanger.
April 1974 Operation and ownership transferred to Flagruten ANS, Stavanger and renamed PRINCEFOIL.
31 May 1974 laid up in Stavanger.
27 July 1974 sold to Wonder Shipping Company Ltd, Limassol, Cyprus
August 1974 in service between Larnaka, Cyprus and Lebanon.
1978 Sold to Aliscafi S.N.A.V.,S.p.A. Messina, Italy, renamed FRECCIA DEL SUD.
Used as a supply vessel by Agip the Italian petrol company on offshore duties in the Adriatic. For this purpose the luggage compartments aft on deck had been removed and replaced by a platform capable of carrying up to seven tons of cargo.
2015 According Equasis still in service, same name and owned by same owners, Italian flag and registry, IMO No 5381368.
Cyprus (Turkey) 1978 100k sg66, scott58.
Source: Watercraft Philately 1983/69. Internet. http://www.skipsarkiv-rogaland.net/fart ... ersion.htm