Sea Gold

From Author Wars - https://authorwars.com/publications/sea-gold-878186.html

Overview:

Title: Sea Gold
Author: John Blaine
Year: Unknown
Publisher: Grosset & Dunlap
Pages: vi+214
Binding: Hardcover
Type: Novel
Title Reference: Sea Gold
Notes:
No printing date, bought new in the 1960s. Grey casewrap cover with color illustration on the front. Back cover has an illustration and a list of 17 series titles printed in red. Spine shows the series number and the catalog number. The cover illustration is likely to be the same as the one on the dust jacket front cover of the first hardcover Grosset & Dunlap edition. Cover artist is not credited but the cover art is signed. Endpapers have a two-page map printed in blue and white titled "Spindrift Island". Map artist is not credited. Frontispiece artist is not credited.