I have some glass head pins that the pin heads are red or white. They are very sharp, last a long time, and stay sharp. They do bend if you stress them too much.
Unfortunately, there is nothing on the case to indicate the manufacturer - but I do know they weren't Clover. They may have been H. A. Kidd. I'm not sure if this link will work.....
http://www.hakidd.com/inprdet.asp?le...ductID=3063103