Reproduction WWII German Enigma Machine Button Long

For sale is a reproduction button long [as listed in the blueprints, but we would call it a key stem] that was used with the German WWII Enigma machine.  These button long/key stems are being sold individually. This button is made of Cr12 steel, and comes with a spring, a spacer and two metric screws and nuts.  The spring attached to a small hole at the back of the keyboard and to the upper metric screw, nut and spacer. The button long occupied the top tier of the keyboard, and that tier used nine (9) button longs.  From top to bottom the button has a slot with two small holes for the insertion of the button head bottom, sold separately.  The button head bottom supported the engraved key, glass covering, and the button head top.  The top metric screw and nut keeps the spring and the button in the upright position, and the bottom metric screw and nut keeps the button from dropping all the way through the contactor plate underneath the keyboard.  When inserted through the keyboard the metric screw with spacer and the screw underneath that face away from the operator. The rectangular cutout at the bottom of the button passes through the contactor plate and then a small piece called the anti-twist device abuts against that cutout and keeps the button from rotating on its’ vertical axis.  There is a small tab that is available on the store, sold separately, that can replace the bottom metric screw and nut.  There is a small hole cut in the bottom of the button for insertion of a plastic plug, but the plug doesn’t fit very well into the hole.  The original button long used a very small circular piece of leather to act as a sound dampening device for when the button/key was depressed down against the advance bar.  Each individual button long weighs 0.6 oz and will be shipped either USPS First Class parcel or USPS First Class International parcel for overseas sales. Of course if you buy all nine at once the weight will be 5.4 oz.