All About Pocket Knives

The 2005 Prince 503 on the left has larger rivet
heads than all the older models on the right. Did
all 500 series knives after 2005 have
larger rivet heads or was it a one time thing? Just
curious?

Fred,

I wasn’t aware of the change. Maybe someone here has some more relevant examples, like yours.

I’m not much help on this topic but... Nice group!