Just for you Wilma 
Danone
In the mid 1990s both the Irish and British Jacob’s companies were acquired by French-owned Groupe Danone who redesigned both the biscuit and the packaging.[1] The two biscuits held together by cocoa cream were replaced with a single biscuit, topped with cocoa cream. The real chocolate exterior was replaced with a thinner layer of chocolate-based coating.[4] The original milk and plain biscuits were discontinued, whilst the flavoured varieties were repackaged in cellophane flow pack.
United Biscuits
In September 2004 the Jacob’s brand was sold by Danone to British-based United Biscuits, who have restored some of the traditional elements of the Club biscuit, including the two-layer packaging, with an inner foil wrapper, and an outer paper wrapper. At present they have not returned to the double-biscuit structure of the bar itself. The Irish part of the company was sold to Fruitfield Foods, to form Jacob Fruitfield Food Group, which has led to legal battles over the use of the Jacob's brand name.