I found a 1948 Australian first edition of this book yesterday in Wellsford.
Sadly the dustjacket has split down the spine and has lots of small tears. The book is in a good condition but the name page has been cut out.
The dustjacket was illustrated by Dorothy Wheeler which is significant as it’s the same illustration as the 1943 first edition (that can be bought for $3000NZ). I have no idea if this book has any significant value. I doubt it as the same book without the DJ is for sale on Trademe with an $8 reserve.
I’m going to keep this book along side my Secret Seven hardback collection from the 1960s.