Presumably the "Zat" meant "Howzat" ?
The Nawab of Pataudi can be read about courtesy of the OpenUniversity/iftikhar-ali-khan - and if you search online you will also come across his son, Mansoor Ali Khan Pataudi, who was also a brilliant cricketer, despite losing an eye in an automobile accident in 1961 when he was aged just 20. You can read more about him at an interesting site called Thefamouspeople.com/mansoor-ali-khan-pataudi.
Do be aware that many sites mix up cards of both players, but it is relatively easy to tell given the dates and the fact that when his father died the son was just eleven. Even the Trading Card Database/Nawab-Of-Pataudi does this - but what a fantastic Australian Licorice card of the father !
Now "Boy`s Magazine" was first published in 1922, by Allied Newspapers (E. Hulton & Co. Ltd, of Shoe Lane, London), as a weekly paper for boys, out every Saturday, at a cost of 2d.
Many thanks to the most excellent website maintained by Friardale,com, you can actually see our cards, (or those of Jardine, Larwood and Sutcliffe) on the front cover of the edition dated 4th of February 1933 where they are described as "Sepia Snapshot Cards of our Test Heroes". The cover also says "Collect these cards and exchange them for the great new game "ZAT". More cards appear on the cover for March 4th, 1933 - and on March 11th, 1933 it says "FREE! Three Zat snapshot cards inside". However they are last mentioned on the cover for April 1st, 1933.
As far as Boys Magazine, there was a total of 627 issues over twelve years and then in 1934 it was merged with “Champion”.
I have, sadly, not been able to find the full size photos which were the prize for sending in the team of eleven cards which had to include either of the wicket keepers. However this is an attractive set and it deserves to be better known.