Very old maybe turn of the century or before music box cylinders 1-2-three is missing the number stamp-and 4. There is an extra end piece that might give some clues as to what make and model these are for. I have no idea. The cylinders have knurled ends. The pinned portion inside the knurled ends is 13 7/8 long. Check out the photos for condition. The item “Antique 13 7/8 Pinned Cylinders Swiss Type Music Box Lot #1-2-3-4 Project Parts” is in sale since Sunday, October 28, 2018. This item is in the category “Collectibles\Decorative Collectibles\Music Boxes\Pre-1900″. The seller is “*machine_age*” and is located in Zionsville, Pennsylvania. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Bahamas.