Looks like a brass bell that has a cross on top says 1786 on 1 side and santa barbara on the other side

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Could anyone help me to have a rough idea of the value of this books?

Goethe's Werke collection in german. Published in 1828 by Stuttgart & Tübingen. 24 volumes, five or six of them are missing. Good condition, no pages missing and covers in good state.

Seven of them have Eamon's de Valera(first Toaiseach of Ireland as independent state) signature, they were signed by him while he was Maths professor at Carysfort Teacher's Training College in 1906.

Thank you.

i do not have a way to put a picture here.