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Sievers Sales & Service • New/Used OEM AC/Gleaner parts • Rebuilt Hydraulic Pumps and Power Direction Clutches • Farm Toys, Literature, Manuals, Posters (605) 759-4305 Dave Geis is above with an experimental A-C HD9 dozer. The dozer blade is part of the chassis, with blade and tractor raised and lowered together. Far left, four A-C dozers worked to build a pond. The HD41B at near left, owned by Dale Duerfeldt, and the G, owned by Kevin Honeycutt, represent the largest and smallest tractors built by A-C. Prairie Plowing Days hosted the Bigger Dig the last weekend of August in Concordia, Kan. The Historic Construction Equipment Association International Convention also was conducted at this show, celebrating its 40th anniversary. The three-day event attracted more than 7,500 people and 700 pieces of equipment. Thirty-seven states and three foreign countries were represented. The show featured Allis-Chalmers agriculture and construction equipment. The show also had historic construction equipment, steam engines and prairie tractors in the field and displayed. A highlight of the show 14 Aultman Taylor 30-60 tractors plowing with 14 eight-bottom plows. There also was a Marion steam- powered shovel and steam- powered cement mixer that may be the only operational units in existence. There were two Monark crawlers and A-C models L and M. No Allis-Chalmers show would be complete without the famous giant HD41B dozer on display and in the field moving dirt. Bigger Dig was a big deal 54 OLD ALLIS NEWS