Using pastry brush, coat the bottom and sides of 12" x 3" springform cake pan with 2 Tbsp of the softened butter.
Coat one side of a 20" strip of wax paper with 2 Tspn softened butter and fit the paper greased side up inside the pan.
In a large bowl combine the fruit peel, white raisins, currants, seedless raisins, cherries and angelica. Sprinkle the fruit with 1/2 cup flour, tossing about with a spoon to coat the pieces evenly. Set aside.
Sift the remaining flour with baking powder and salt. Set aside.
In another large bowl, cream the remaining cup of butter with the brown sugar until light and fluffy.
Add the pulverized almonds then beat in eggs one at a time.
Add the flour mixture a half cup at a time then beat the fruit mixture into the the batter.
Finally add the sherry and pour the batter into prepared pan. It should come to no more than 1 inch from the top. If necessary, remove and discard any excess.
Bake in the middle of the oven 1 hour 45 minutes or until a cake tester inserted in the middle of the cake comes out clean.
Let the cake cool for 30 minutes before removing sides of the springform pan, then slip it off the bottom of the pan onto a cake rack to cool completely. Once cool, carefully peel off paper.
Notes
This cake can be made months ahead of time and kept thoroughly wrapped in the freezer.