A friend of mine found the original text that accompanied the photo. Here's the information:
"This largest of all tires WAS manufactured by The Goodyear Tire & Rubber Company at Akron. Ohio in line with the company's progressive steps as the pioneer in the rubber industry. A prominent airplane manufacturer has said the day will come when giant airplanes will be used requiring a tire of this size.
Trend—Weighs 600 pounds
Fabric—Weighs 150 pounds
Inner Tube—Weighs 125 pounds
Non-Skid Diamonds 16 inches long, 10 inches wide
Load-Carrying Capacity—40.000 to 50.000 pounds
Wheel—Weighs 600 pounds
Rim—Four feet in diameter, 30 inches wide
Total Weight—1800 pounds
The currently tallest tire actually used in construction measures nearly 14 feet tall and almost 6 feet wide, and weighs approximately 12,500 pounds."