BBb 4/4 Marching Contra (tuba) – TB421 – Wessex Tubas
German contra-bassoon (double bassoon) by Mollenhauer of Kassel, resting on its stand in an orchestral break. NB crook pointing forward, and metal bell, pointing at floor Stock Photo - Alamy
Oude Duits contrabas omstreeks 1890-1900
10 set Upright Double Bass String ,Contra Basses E A D G String | eBay
Vintage German "Contra-lute" 1900 THEORBA | Reverb