This a set of breaker points sitting by themselves.
You will find them inside the flywheel on either the right or left side of the motor.
(the flywheel spins as the motor runs).
Its hard to see the actual "points"... they are two little round pads that are right tight up against each other in this photo... they are above and a little to the right of the 2nd hole from the left end.
The long straight arm is what moves and opens the points.