Lemon, lime, orange, and strawberry are easy to identify, even for a Yank. Each roll of Rowntree's fruit pastilles (two for $1) includes those four flavors of the puck-shaped jellies, and one more, in purple. Consider that Rowntree's are made in England, also the birthplace of Ribena, and that final I.D. falls into place: black currant.
The Butcher Block
43-46 41st St. (Queens Blvd.-43rd Ave.), Sunnyside, Queens