Given by Stanley Gibbons as a tanker, but by looking at the stamp she is a gearless bulker and not a tanker.
By looking through Comecon Merchant Ships I found a photo which looks the same as the ship depict on the stamp and only one bulker I can find under Cuba flag which is gearless around the time the stamp was issued.
Two of this type were built only one was gearless the other carried cranes. The gearless bulker is the ANTONIO MACEO one of the Ziemia Bialostocka type.
Built as a bulker under yard No 141 by G. Dimitrov Shipyard, Varna, Bulgaria for Emp.de Nav. Mambisa, Cuba
29 October 1980 launched as the ANTONIO MACEO one sister under Cuba flag the 26 DE JULIO.
Tonnage 15,988 grt, 8,707 net, 25,401 dwt. Dim. 185.2 x 22.9 x 9.8m., length bpp. 172.1m.
Seven holds/hatches.
Powered by 6-cyl. Cegielski/Sulzer diesel engine, 12,000 bhp, speed 16 knots.
March 1981 delivered to owners. IMO No 8006270.
1990 Sold to Decalsi Cia Nav. S.A., Cuba renamed SIBANIMAR.
1991 Sold to Gulf Wave Shipping Co. Ltd,, Cyprus, renamed GULF WAVE.
1997 Sold to Sea Route Nav. S.A., Panama, renamed OCEAN SURF.
2004 Sold to Steadfast Marine Ltd. registered in Vanuatu, renamed LUKISSA, 2006 registered in Panama.
May 2007 Sold to Maliki Overseas SA, registered in Portsmouth, Dominica and renamed SALEMA S.
12 October 2011 arrived Chittagong, Bangladesh for scrapping, 14 October 2011 beached.
Cuba 1986 5c sg3187, scott2877.
Source: Comecon Merchant Ships by A Greenway. Marine News.