1939 Horlicks Poster Stamps, Excaliber, Hans Brinke

1939 Horlicks Poster Stamps, Excaliber, Hans Brinker, Gullivers Travels on this set of 4 designed to be put into a Horlicks stamp book. I thought I knew a lot about fairy tales and Childrens stories until I tried to identify all of these stamps. I would appreciate anyones help in identifying these stories as we have passed them around and can't seem to find the answers. The stamps are unused, I have shown the front and back for you to view condition. The front and back is mint condition. I consider them mint condition as glue is still on and they have not been used. This is a set of 4 including #15, 16, 21, 22. This shows Gulliver being tied down by the little people, Hans on Skates, The sword being lifted up in Excaliber and a shipwreck. These are connected (not torn apart), each stamp is 1 1/2 x 1 3/4"" and the sheet measures 3 3/4 x 3"" and are marked Storyland Stamp 1939 Horlick's