Do you recognize this tool? It measures about 4 inches by 4 inches. It is marked "No. O Pat Aug. 25 1925 serial number 241960."

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Check back here August 16 for the correct answer, or find it in the September 2011 issue of Farm Collector.

Have a tool you want to submit? E-mail us at editor@farmcollector.com with at least one photo taken in a well-lit area against a plain background. Include dimensions and any markings on the piece.

Do you recognize this tool? "Norris Bros. Tool Co." is cast into one side; the other side reads "Robinson, Ill." The handle is marked with the numbers 256, one jaw is marked 214, the other 27? (final digit unreadable). Wrench appears to fit only 2-1/2-inch pipe or shaft. Pipe contact area measures 1-1/2 inches wide. A case-hardened part is sharpened to bite into the pipe when the jaws are closed. The more pressure that is applied to the handle, the mor epressure is put on the jaws to close on the pipe.

If you recognize this mystery tool leave a comment by clicking the Comment link below.

Check back here August 16 for the correct answer, or find it in the September 2011 issue of Farm Collector.

Have a tool you want to submit? E-mail us at editor@farmcollector.com with at least one photo taken in a well-lit area against a plain background. Include dimensions and any markings on the piece.

May 2011 Item A 

Hub and spokes from a ground-driving wheel for manure spreaders and other implements, identified by John S. Rauth, Ridgely, Md. Photo submitted by Wayne Hanson, Salina, Kan. 

May 2011 Item B 

Animal marker, as identified by Gary Drentlaw, Northfield, Minn. Photo submitted by Robert W. Winzer, Atchison, Kan. 

May 2011 Item C 

Hand-made tool used to pull weeds like thistles. Long handles allowed the user to reach to the stalk just above the ground surface, allowing the operator to stand clear of the thistles' needles. Overall length of this tool is 52 inches. Photo submitted by Herve Defever, Corunna, Mich. 

May 2011 Item D 

Dough-forming machine, identified by John S. Rauth. Photo submitted by Erwin L. Fullerton, S. Woodstock, Vt. See patent 1,424,806 for a similar device. 

Do you recognize this mystery tool? It is 46 inches long.

If you recognize this mystery tool leave a comment by clicking the Comment link below.

Have a tool you want to submit? E-mail us at editor@farmcollector.com with at least one photo taken in a well-lit area against a plain background. Include dimensions and any markings on the piece.

Do you recognize this tool? It folds in the middle and measures 8-1/2 inches by 7-3/4 inches. It is made of cast iron and has the numbers 100 and 101 on the back.

If you recognize this mystery tool leave a comment by click the Comment link below.

Check back here July 19 for the correct answer, or find it in the August 2011 issue of Farm Collector.

Have a tool you want to submit? E-mail us at editor@farmcollector.com with at least one photo taken in a well-lit area against a plain background. Include dimensions and any markings on the piece.