E Robert Case said:

> Some of the great German liners were said to contain beautiful Welte
> instruments, and some American liners were said to contain upright
> players.  According to an advertisement I remember seeing in Harvey
> Roehl's 'Player Piano Treasury', some WW1 battleships were fitted with
> players.  There is little information to be found more than this,
> because I have been keeping my eyes open about this very subject for
> a very long time.

According to the official (British) history of the Battle of Jutland
in the Great War, the Royal Navy ships contained nine player pianos.
We are also informed that a shell passed right through a grand piano
(we assume a plain one) -- which remained playable.

Dan Wilson, London