Assertion: bottle's base | /r/CapableOf | have originated in early 1840s
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text: Hinge mold bases can date back to at least 1810, but keyed bases appear to have originated in the late 1830s or early 1840s and disappeared by the early to mid-1870s (Farnsworth & Walthall 2011) allowing for a relatively reliable begin date for this type of base (Toulouse 1969b;