I discovered a great new resource- it’s an online museum of all sorts of design and memorabilia from the Netherlands. It’s easy to navigate and has nice large images. The racing poster is titled “Tilburgsche Wieler en Motorbaan T.W.E.M.” and was created in 1921-1922. The soccer poster is titled “Zondag a.s. voetbalwedstrijd tusschen D.F.C.” and was created in 1900-1925.
