The model number is not marked on the exterior of this radio, just the chassis number which is 7H04Z2. A little internet research indicates it may be model number H-723, or H-724, or R-723. They all look very much the same. This is an original antique tube radio - not a reproduction.
Unable to confirm the FM is working because there are no signals where I live in the mountains. However, it does receive static and can amplify just fine. I can not guarantee the operation of this unit due to its age and fragility of electronics. I have not serviced it and so I recommend that you have a technician or someone knowledgeable in tube radios go over it. Please check out my other listings because I have many other vintage radios for sale and more added every day.
The item "VINTAGE ZENITH H-723 / R-723 AM FM TUBE RADIO, Bakelite, Tested" is in sale since Sunday, August 16, 2020. This item is in the category "Collectibles\Radio, Phonograph, TV, Phone\Radios\Tube Radios\1950-59". The seller is "avalaro" and is located in Heber City, Utah. 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, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, 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, Russian federation.