The Beatles signed barrels of sherry with chalk and apparently they are still on display. Although, obviously these are some sort of reproduction, because how could chalk writing still be around 50 years later?
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| "WilliamsHumbert601" by El Pantera - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons - https://commons.wikimedia.org/wiki/File:WilliamsHumbert599.jpg#/media/File:WilliamsHumbert599.jpg |
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| "WilliamsHumbert601" by El Pantera - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons - https://commons.wikimedia.org/wiki/File:WilliamsHumbert601.jpg#/media/File:WilliamsHumbert601.jpg |
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| "WilliamsHumbert601" by El Pantera - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons - https://commons.wikimedia.org/wiki/File:WilliamsHumbert597.jpg#/media/File:WilliamsHumbert597.jpg |
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| "WilliamsHumbert601" by El Pantera - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons - https://commons.wikimedia.org/wiki/File:WilliamsHumbert603.jpg#/media/File:WilliamsHumbert603.jpg |