This specially designed penguin bookshelf unit called the Penguin Donkey MK 2, certainly seems a retro piece today. Probably collectible if one survived from the early 1960s. As the advertising insert states, "this helpful creature" was designed by Ernest Race, and was 16" high by 21" long. The size seems rather small. Could one possibly place a table lamp, a decanter, coffee cups or drinks on the "Donkeytop"? So it says. Also holds 90 Penguin paperbacks and your Guardian Newspaper. I can see it sitting on white high pile carpet beside an orange molded chair and an interesting floor lamp designed by Achille Castiglioni.
The Isokon Design Company began in the 1930s and re-emerged in the 1990s. If you can't find a 1963 Penguin Donkey at the local thrift shop, you can always purchase a new version of the Penguin Donkey. Not quite my style, but I can appreciate the design even if I can't appreciate the new price.