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.

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Herman Miller Eames Chair & Ottoman. Very likely Rosewood, but unable to guarantee with 100% certainty this is the wood type (The opinion of two cabinet makers is Rosewood). Exact age is unknown, but this is a family piece and can verify it is from 1973 or prior. All original parts. Leather has scratches as noted in pictures, but none go through the leather. Armrest leather has minor cracks. Wood has wall scuffs and minor water stains as noted in pictures. Probably a 6.5 on a scale of 1-10. Structure of chair is in very good shape, it was only used for approximately 2-3 years.

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my pictures/kellyplaypen

4 retro style chairs and matching glass table. Does anyone know anything about them and their value, either individually or as a set of 4 chairs and matching table?