Ten real vending machines: Coca-Cola cabinets, a cigarette machine, a Soviet postcard dispenser, postal stamp and postcard machines, an early Love Letter dispenser, Wrigley's gum and gumball machines. Photograph credits: 1. File:Old Coca-cola machine at a gas station in historic Stockton, Alabama LCCN2010640205.tif; Carol M. Highsmith; Public domain; https://commons.wikimedia.org/wiki/File:Old_Coca-cola_machine_at_a_gas_station_in_historic_Stockton,_Alabama_LCCN2010640205.tif; https://commons.wikimedia.org/wiki/File:Old_Coca-cola_machine_at_a_gas_station_in_historic_Stockton,_Alabama_LCCN2010640205.tif; 2. File:Vintage Coca-Cola Vending Machines.jpg; Ben Franske; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Vintage_Coca-Cola_Vending_Machines.jpg; 3. File:Cigarette Machine.JPG; Charles90068; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Cigarette_Machine.JPG; 4. File:A. S. Popov Central Museum of Communication - exhibition - 14 - postcard sale machine.jpeg; User:Gone Postal; CC SA 1.0; http://creativecommons.org/licenses/sa/1.0/; https://commons.wikimedia.org/wiki/File:A._S._Popov_Central_Museum_of_Communication_-_exhibition_-_14_-_postcard_sale_machine.jpeg; 5. File:Automatic Stamp and Postcard Vending Machine.jpg; Momotarou2012; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Automatic_Stamp_and_Postcard_Vending_Machine.jpg; 6. File:Love Letter postcard dispensing machine, c. 1900 - Wellington Museum - Wellington, NZ -DSC09964.jpg; Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Love_Letter_postcard_dispensing_machine,_c._1900_-_Wellington_Museum_-_Wellington,_NZ_-DSC09964.jpg; 7. File:Wrigley's chewing gum vending machine.jpg; Alf van Beem; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Wrigley's_chewing_gum_vending_machine.jpg; 8. File:Vintage Gumball Machine (2552026699).jpg; Julie Alexander from U.S.; CC BY 2.0; https://creativecommons.org/licenses/by/2.0; https://commons.wikimedia.org/wiki/File:Vintage_Gumball_Machine_(2552026699).jpg; 9. File:1931 George V Combination Pillar Box and Stamp Vending Machine, Type D.jpg; British Postal Museum & Archive from London, UK; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0; https://commons.wikimedia.org/wiki/File:1931_George_V_Combination_Pillar_Box_and_Stamp_Vending_Machine,_Type_D.jpg; 10. File:Royal Mail stamp vending machine.jpg; Photograph by Mike Peel ( www.mikepeel.net ).; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Royal_Mail_stamp_vending_machine.jpg;