The first Island "white and red" label was used mainly for Jamaican productions released in the United Kingdom. Catalogue numbers started at WI-001. Many of these records had been released previously in Jamaica and other territories on small local labels. For a variety of reasons details of the artists and songs printed on the labels do not always match what is actually to be found in the grooves of the record! The main Island label was soon joined by another three labels: Sue for black American music with catalogue numbers starting at WI-300, Black Swan for more Jamaican music starting with WI-400, and Jump Up, for Calypso and Trinidadian music, starting with 500, but using another prefix (JU). The Aladdin label was started in about 1965 and used numbers starting with 600, using the WI prefix.