UN-Related Meter and Permit Slogans used in the United States-Commercial, Philatelic, and NGO's
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| Item # | Slogan | City | Device # | Earliest Observed Date | Latest Observed Date | Color | User | |
| K1. | Know your UN | Philadelphia, PA | PB 130647 | 10/20/1954 | 10/20/1954 | Red | Bell Telephone Co. of PA | |
| K1. | Know your UN | Philadelphia, PA | PB 152080 | 10/14/1953 | 10/23/1953 | Red | Bell Telephone Co. of PA | |
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| K1. | Know your UN | Philadelphia, PA | PB 313898 | 10/14/1953 | 10/14/1953 | Red | Bell Telephone Co. of PA | |
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| K1. | Know your UN | Philadelphia, PA | PB 314021 | 11/16/1953 | 11/16/1953 | Red | Bell Telephone Co. of PA | |
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| K1. | Know your UN | Philadelphia, PA | PB 345392 | 10/23/1958 | 10/23/1958 | Red | Bell Telephone Co. of PA | |
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| K2. | Know your United Nations | New York, NY | PB 170684 | 2/8/1951 | 2/29/1960 | Red | Carnegie Endowment for International Peace | |
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| K2. | Know your United Nations | New York, NY | PB 170684 | 10/19/1954 | 10/19/1954 | Red | Conference of Consultative Non-Governmental Organizations | |
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