The reason I ask is I have the first I bought, sometime in the late 1970's or very early 80's. It is a 3 pin Hoffritz 5/8, hollow grind. It's fairly plain jane, with black scales and white spacers, and no ornamentation (I was poorer and more practical then). All it says on the tang is Hoffritz Germany.

After a re-honing at SRD it seems to hold an edge and shave smoother than some of my newer acquisitions.

Just curious.