Inspirations for the Chums of Chance

[Ande]

Penny Black?

 From the illustrated version:

http://www.worldwideschool.org/library/img/TomSwiftandHisAerialWarship-Chap11.jpg




Otto wrote:

> But I really ask myself, given what Pynchon writes in the "Secret
> Integration" about "Aerial Warships" (144) if this one isn't the
> source for the "Chums of Chance":
>
> TOM SWIFT AND HIS AERIAL WARSHIP
> or The Naval Terror of the Seas
>
> BY VICTOR APPLETON
>
>