The 1989 OSHKOSH MOTOR TRUCK CO. CONVENTION has sustained significant damage, primarily from hail and secondary water/flood damage. The exterior of the silver-colored vehicle shows moderate visible damage, with a fair overall exterior condition. The interior condition is poor, with visible damage and wear. The mechanical components are unknown and not drivable. The wheels and lights are likely damaged, with extensive interior damage. The vehicle requires considerable repair and is not drivable.

The vehicle shows signs of hail damage across the body, compounded by water/flood damage. The interior is severely affected, with visible wear and damage. The wheels and lights show no specific condition details in the provided pictures. The overall state reflects significant damage requiring extensive repairs.