THE BOB COOK (FLAG AND COUNTRY) SERIES
By Paul Tomlinson

1. BOB COOK AND THE GERMAN SPY --  illustrated by Charles L. Wrenn. 1917. Barse & Hopkins.
2. BOB COOK AND THE GERMAN AIR FLEET --  illustrated by Charles L. Wrenn. 1918. Barse & Hopkins.  
3. BOB COOK'S BROTHER IN THE TRENCHES -- illustrated by Charles L. Wrenn. 1918.
4.  BOB COOK AND THE WINGED MESSENGER -- illustrated by Charles L. Wrenn. 1919.  Barse. Bound in red cloth; pictorial front cover and spine stamped in black and white. Illustrated frontispiece.
5. BOB COOK AND THE BOMB PLOT -- illustrated by Charles L. Wrenn. 1920. Barse & Hopkins.

Source:

WorldCat Holdings