Interesting--your comment made me go and compare knives. I have no Solingen 14's, but I do have a Solingen 15 that I bought from Randall in the 1960's. I measured the width of it and of my other 15s, and all are just a hair over one inch.
(By the way, I measured my 14s bought from the 1960's to a couple years ago, and all measure a hair over 1-1/4 inch.)