That hole in thre stationary point is normal for some of them. The idea was to spread out the contact area over a wider surface than right in the center where most points put it. It was necessary to do a very careful alignment of the ventilated ground point on a distributor tester by bending the stationary point mount with a special tool and watching the tiny spark as the points would make and break. Doing it on the vehicle was almost impossible, so most shade tree shops didn't install the vented points.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!