Very Early Type 1 Pneumatic Stack
in Seeburg Coin Pianos

Very early type 1 Seeburg stack.

(Photograph courtesy of Ed Gaida)

Very early type 1 Seeburg stack. The primary valves are hidden below the top cover. The adjustable bleeds are near the back, staggered in two rows. This stack is in Seeburg A with unknown brand of piano #7,627, and was probably made in 1909. The stack bears no visible die-stamped serial number. We are interested to learn if these very early double valve stacks have a serial number written in pencil somewhere inside.
End of top channel board in very early Seeburg stack.

(Photograph courtesy of Ed Gaida)

Another view of the stack in Seeburg #7,627, showing the end of the top channel board just to the left of the lowest automatically-played note.
Early Seeburg double-valve stack showing the top two layers unscrewed and tipped back, revealing the primary valves and pouches.

(Photograph courtesy of Earl Hennagir)

Another very early double-valve stack from Seeburg #107,809, with a piano made by Smith, Barnes, and Strohber. This photo shows the stack with the top two layers unscrewed and tipped back, revealing the primary valves and pouches. The primary pouch wells are drilled into the top surface of the top pneumatic deck. The secondary pouch board and valves are typical of an ordinary type 3 early style stack. The secondary pouch board has been removed in this picture, showing the groups of valve mounting plates along the bottom of the picture.
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