[Bell Historians] obscure question of the week

[Susan Dalton]

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>From: "David Bryant" <david at b...>
>To: "Bell Historians" <bellhistorians at yahoogroups.com>
>Subject: [Bell Historians] obscure question of the week
>Date: Fri, Sep 12, 2003, 5:24 pm
>

> Does anybody know when hexagonal nuts first came into use? In bellhanging,
pretty late (I don't have exact dates).

Are they likely
> to be original to an installation of 1869? No. [Whose installation is it?]
>
> C D
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