There may be more but I haven't seen them. These were booklets sent to Robin Club members on their birthday. An example of the third one published in 1955 came up for aution on eBay UK in Mar 2014 with a starting price of £39.99 but a Best Offer was accepted. A pretty rare if small market appeal item.
Note: some PR issues may have no value. Selected issues in FN, VF or VF/NM may not exist in some titles.