Home›Motorcycles introduced in the 1910s›Williamson Flat Twin🌐EnglishEnglishDeutschNederlands日本語EntityQ2953189· pop 5· linked from 9 articlesWilliamson Flat Twintype of motorcycleWikidata factsImage1913 Williamson Flat Twin motorcycle.JPGSources (2)de.wikipedia.orgen.wikipedia.orgvia Wikidata · CC0Available in 4 languagesDeutschEgyptian ArabicNederlandsvia Wikidata sitelinks · CC0ConnectionsInternational Standard Book NumberEntitymotorcycleEntityCategoriesMotorcycles introduced in the 1910sMotorcycles of the United KingdomMotorcycles powered by flat engines