The center is the thermometer section. The piece still has the glass tube in it, and is keeping the correct temp.Here is a great piece that's not common to add to the collection, the sign has minor paint ware, but overall a great piece for display or use. The 4 slots on top and bottom are factory and I assume to mount the piece. The sign measure 8 inches wide and 36 inches tall. If you collect signs, gas and oil signs, cans, gas pumps, lubster, Gulf, Valvoline, Mobil, Standard, Texaco, Willard, Ac Delco, Service Station Advertising Display rack, BFGoodrich, Exide Batteries, etc, Add this nice piece to your collection. I can accept Pay Pal. Check out the other items I have listed. This item is in the category "Collectibles\Advertising\Merchandise & Memorabilia\Signs\Original\1930-69". The seller is "badboyz1" and is located in this country: US. 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, Korea, South, 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, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Chile, Colombia, Panama, Jamaica, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.