November 2013 Mystery Tool A
Unidentified. Photo submitted by David Ruark, Pomeroy, Wash.
November 2013 Mystery Tool B
Unidentified. Photo submitted by Jeff J. Marshall, DeKalb, Ill.
November 2013 Mystery Tool C
Clothesline reel. Head shown here; 2-1/2-by-2-inch boards (up to 6 feet in length) would be inserted into each socket, forming a framework to support a clothesline. Photo submitted by Howard Bode, Faribault, Minn. See patent 306,868.
November 2013 Mystery Tool D
Hay and fodder fork, used to move hay or fodder or make bundles of fodder that could then be squeezed and tied. Photo submitted by Steve Sylvester, Centuria, Wis. See patent 384,281.
November 2013 Mystery Tool E
Stoneware poultry fountain minus the bottom pan. Photo submitted by Ken Hunter, Allerton, Ill. See parent D42,061 for a similar piece.
I believe mystery tool "A" is a variable pitched propellor for a boat.