A sheaf of wheat. The harvesters would cut the wheat with a sickle, and the sheavers would bind it and tie it together in bundles or sheafs. The sheafs allowed the grain to dry and were then carried in for later thrashing. The grain was then ground into flour and made into bread. Symbolic of biblical references to wheat and harvest, abundance and fruitfullness. 
This may be used as a partner window to 16333 Cluster of Grapes to symbolize the Eucharist, the body and blood of Christ.
Wheat sheafs were also used in heraldry and as symbols for bakers and bread.