This must have been in an important office or area. Truly one of a kind. I have never seen a USNO mantle clock.
All of the USNO Chelseas I have ever seen are more utilitarian models. As you likely know, the USNO is the branch of government tasked with keeping accurate time, its no wonder they counted on Chelsea for their own timekeeping needs.
The Tambour case is original and in great condition for its age. The dial has been professionally restored by Chelsea.The movement has been disassembled, cleaned, adjusted and serviced. This clock runs beautifully and its my favorite of my collection. Will come with an original Chelsea Key. Please let me know if you have any questions. The item "Chelsea Ships Bell Tambour #30 1918 USNO Navy Naval Observatory Restored" is in sale since Tuesday, December 21, 2021. This item is in the category "Collectibles\Decorative Collectibles\Clocks\Desk, Mantel & Shelf Clocks".
The seller is "grouts209" and is located in Janesville, Wisconsin. 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, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, 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, Uruguay.