Aeolian player organ, Mechanical Orguinette. The 1050 model was essentially two separate actions in one. The action operated by the rollplayer was placed vertically along the back, and the action operated by the keyboard was a regular one horizontally placed under the keyboard itself. On this one the player portion is not currently functioning.
The stops are listed left to right, going from top to bottom, and each stop is designated with an "L" or "R" to indicate which side of the organ it is on; left or right respectively.
Date from letter of former restorer. Serial number possibly 216 found stamped on top of the case and not on the back or on the action itself (as such, it may be a separate "case serial number"). Pitch is A455.
See also: For the smaller (but related) model 1000, see ROS reg. G3313.

J. Mehrer collection