Rendered graphic made in Blender.
Sopwith Camel F1 Models by simbos75 from BlendSwap.
Pilot model by electric-2000 from Thingiverse.
BB-18 Model by TheShell from sharecg.com

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Rendered graphic made in Blender.

Ocean and foam are Blender FX created following a tutorial.

Ship made by xyz found on Trimble 3D Warehouse.

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Celebrated_Race_of_the_Steamers_Robt_E_Lee_and_Natchez_1000x400sepiaPublic Domain image from Wikimedia Commons.
The image has been cropped and modified with a sepia filter.

kronprinzwilhelmpostcard.jpg

Public Domain image from Wikimedia Commons

fürst_bismarck_sd_hapag.jpg.jpeg

Public Domain image from Wikimedia Commons