Eureka! The Missus stopped off at the sales offices of Harvest Song Ventures at 10th Ave & 37th, NYC. They were kind enough to provide her with two 536 gram jars of quince preserves from the Ararat Valley of Armenia. The preserves make a nice spread because it is not excessively thick; it only contains quince, sugar and citric acid. The $10 savings on shipping costs helped offset the $50 bus fare and made the $10 per jar cost more reasonable.
To our taste the Hero is too thick and lacking in flavor and the Sarantis is too sweet.