Comment by annaloog:
Quote:
... this book just has an M. I don't know if that specifies anything related to ....
Just a guess, given the 5 shilling cover price, possibly a title in the Pan Major series, like
this example.
Comment by 23skidoo:
On the spine on this printing, under the Pan Books logo, in the space where books of the era often had a Pan cat # (X-number, etc), this book just has an M. I don't know if that specifies anything related to the type of printing this was.