The official Woolworth story, featured in the now defunct Woolworth virtual museum is reproduced below. Many thanks to John Martin for this article and pictures.
Initially Embassy Records were available only as 10 inch (25 cm) discs playing at 78rpm. Despite the dull plain brown overprinted sleeves, sales of the opening titles were very encouraging - and before long they had come up with a better design for the sleeves and a strategy to develop the label. A broad spectrum of music would be offered:
songs and instrumentals from films and shows
light classical numbers, for example Gilbert and Sullivan
children's records
cover versions of the hits of the day, recorded by unknown artists, session musicians or (occasionally) by stars working under false names.
Before long the company added a 7 inch (17.5cm) 45 rpm record, which gradually took over from the 78s - with each record containing two hit songs, and long playing 33 rpm 12 inch (30 cm) records with ten to twenty tracks. They were very popular and sold by the million.
Customer feedback about the classical, instrumental and children's records was always positive.