German double bass

[M E Strings]

I've been asked by a school to sort out their unused instruments so that they can raise some money towards buying some new ones. There are two flat backed German full sized double basses to be sold.
Both are in remarkably good condition as they haven't had much use I reckon. I believe they are ex Royal Military Band instruments.
Both have a small label which says 'Made in Germany. Both have a laminated back. Both have an attractive purfling design on the back. One has had a neck repair. The only difference I can see is that one has purfling down the back joint

Would anybody like such a beast and want to make the school a sensible offer?
Can anybody suggest a good auction room in the East Anglia area which might sell them?

I have more photos.

Thanks for looking
Peter