Glen Downs of Sandhill Preservation Center says it is a local Iowa family heirloom.
Glessener is a rare and really nice pink beefsteak. The flavor was great with a nice balance of sweet and acid. The plant is potato leaved which I like as it gives a nice leaf protection from sunscald and I personally think that gives an edge to increasing the flavor of the tomatoes. Fruit range in size from medium to large - 8-16 oz and I was amazed at the number of fruit it set.