This book was published by Altemus in numerous series. None of the
series have this cover format however.
The book is 5.5 x 4.25.
It cannot be dated exactly but any Altemus book that has "Printed in
the United States of America" at the base of the copyright page was
published in 1922 or later.
Two series that included Gold Dust were published after 1922. These
of Service Series" and "Slip in
the Pocket Classics". Both of these series featured books of
the same size but neither have a format similar to this cover.
Until a second book with this cover is found, this book will have to be
classified as an "unknown series".