This grouping of artifacts illustrates the result of categorizing artifacts by material rather than function. We have a baking pan or roaster sporting a ring, two masses of lead foil, one carefully folded the other crumpled, a tin can, a small hook for a clock door, another hook fashioned to hold something and designed to be driven into a beam, fragments of various files, a length of rod, and a pry bar forged by a blacksmith. All grist for a clever interpreter.