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add to order image no. contact sheet collection creator title description subject(s) date
64845 A2088 P.F.R.A., Regina Collection     Difference In Trash Cover Left By A Duckfoot Cultivator (L) And A One-Way (R)  Agriculture ▪ Cultivating ▪ Disking ▪ Environment ▪ Erosion 1949, October 3
64846 A2088 P.F.R.A., Regina Collection     Difference In Trash Cover Left By A One-Way (L) And A Noble-Blade Cultivator (R)  Agriculture ▪ Cultivating ▪ Disking ▪ Environment ▪ Erosion 1949, October 3
64847 A2088 P.F.R.A., Regina Collection     Trash Cover Left On A Field At The Regina Experimental Substation By A Noble-Blade Cultivator.,  Agriculture ▪ Cultivating ▪ Environment ▪ Erosion 1949, October 3