Here is a large-bore Kruspe trombone, probably a model Penzel made between 1900 and 1918. The valve wrap changed after 1918, so it is definitely that old. This seems to be somehow the prototype for german trombones with a large bore (approx. 0.547) and a big bell (approx 9.5 inch). From what I can gather it was the instrument that was used in most german orchestras of the time.
This particular instrument is in beautiful condition, no dings, no dents, not even really any scratches. For an instrument that old, this is quite something I think! The screw at the neckpipe and the spit valve may not be original. The slide inners have certainly been chromeplated recently (well at least after 1930...), but it still looks to be the original slide.
The highlight for me is the engraving. The stamp says Ed. Kruspe - Hoflieferant and the engraving on the Kranz is simply stunning.
Enjoy!









