(Photograph courtesy of Dana Johnson.)

Multi-slot coin transfer connector in a National coin piano. This gracefully contoured assemblage of wooden parts accepts properly sized coins that fall from the comparatively widely spaced coin traps located behind the coin slot faceplate, and then realigns the coins with the more narrowly spaced coin slots in the coin switch mechanism. At top right is a sturdy metal brace that is bolted to the top edge of the transfer connector and also to the side of the piano case. Another similar brace is bolted to the lower neck of the connector, just above the metal retaining clip that can be turned to allow access to the internal channels on the lower end. These two braces keep the transfer connector properly aligned at both the top and bottom ends. The internal channels on the upper part can be accessed by removing all four of the bolts that secure the transfer connector to the metal support brackets.

(Photograph courtesy of Dick Hack.)

Receiving end of the coin transfer connector in National piano.#7352. In this close-up of the receiving end it is easy to see the band-saw cuts in the wood that makes up the various internal channels. Curiously, there appears to have been no sanding or finishing work to smooth out any of the band-saw cuts. The pointed tips on the wood channel separators allow for some misalignment between the above coin traps (fastened to the coin slot faceplate) and the transfer connector itself. With the wide open mouths the various divisions will easily catch a coin in mid air should it tilt or twist a bit after it falls out of the coin trap.

(Photograph courtesy of Dick Hack.)

Delivery end of the coin transfer connector in National piano.#7352. The lower end of the transfer connector interfaces with the eight narrowly spaced coin slots at the back end of the coin switch mechanism. Looking at the terminating end of the connector, notice that the horizontal narrow strip of wood—with the metal retaining clip at its center—is nailed in place, and so it can be considered to be permanently attached. The little cover panel below the retainer clip can be quickly removed by rotating the clip about 90 degrees and then by pulling the top side of the cover forward, making it easy to clear out jammed coins.