Stringsinger, I thought my copy was 1927 too but now I am not so sure. It is copyrighted in 1927 with no other date but inside the dust jacket it shows a price of $4.95. It then goes on to state that the book was originally published at $7.50 but it's great success and it's assured popularity make possible it's republication in this new edition.
I won my copy in an auction probably about 3 years ago.

1957. That's about the time I started buying Sing Out. I still have a whole heap of them but must admit I haven't seen a copy for a number of years now

Hoot