Height of the instrument is 98 cm, bell 35 cm, weight a little more than 6 kg. The brass is very thin, but (still) of very good quality.
Bore is 20 mm!! Sound is marvellous: big for a German F and with an unexpected good low register. Intonation is fine, very manageable.
The seller had the instrument overhauled by J. Voigt in Markneukirchen and added a 5th valve by Meister A. Eckensberger at Chemnitz.
I love to play it, and the members of my quintet are fond of it


Hope the link works, so you can enjoy a look at it.
Hubert
https://drive.google.com/drive/folders/ ... F6ByPaIWU6