I quit using the glass top pins as the heads started falling off after the many years of use. They were not Clover pins. I have switched to T-head pins as I am able to get them picked up easier than my old - glass head pins that lose their heads almost as fast as I look at them. Yes, they are OLD.
I did not know that Clover made glass head pins. Might try them next time I need / want new pins. Where do ya'll buy them from?