21. By 1932, Pinguely was also making steam shovels . 22. To this day the steam shovel has never been discovered and the story continues to grow. 23. Steam shovels , graders, and tractors worked through 1926 and 1927 after the site had been prepared.24. Marion was most successful with the Model 20 series contractors shovels ( see steam shovel ). 25. Trucks and steam shovels and backhoes were dispatched. 26. Construction required extensive excavation utilizing steam shovels and explosives, cutting into exposed promontories and filling canyons. 27. In 1914 they started building two small Steam shovels as a result of a customer request. 28. The company was a major supplier of steam shovels for the construction of the Panama Canal. 29. New to this year's roster is an amiable dragon in the form of an antique steam shovel . 30. Although steam shovels were used to excavate the foundation, the earth was carried away by mule-drawn wagons.
