10--20 inch strips of insulated copper wire, 1/2 exposed on each end 10--40 inch strips of insulated copper wire, 1/2 exposed on each end 15--size "D" batteries 1--battery holder for 2 "D" batteries 10--compasses 25--iron nails, 4" long 1--box of paper clips, approx.
(10--20 inch strips of insulated copper wire, 1/2; exposed; T:on each end 10; 40 inch strips of insulated copper wire)
10--20 inch strips of insulated copper wire, 1/2
exposed
T:on each end 10 40 inch strips of insulated copper wire