‘detail from patent for Gravity Ventilator 10-22-1963’

Detail from patent for Gravity Ventilator 10-22-1963

Mississippi River Basin Model Cleanup February 7, 2026 at 8:00 am – 12:00 pm Buddy Butts Park, 6180 McRaven Rd, Jackson, MS 39209, USA Please join us for our monthly clean up event. We are working to take back the model from the overgrowth. We have several types of activities from removing dirt, debris on the panels to cutting down and removing invasive trees. Activities for all ages including kids who can help with littler prevention.

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Preservation in Mississippi