Hard to tell without a picture, but some Henckels folders did have very thick main blades, especially whittler models and folding hunter knives.There was a Henckels at a local consignment shop that I dismissed because the main blade was so heavily and badly sharpened. If I recall it was a long pull and the main was very very thick at the spine. Is this a common trait of the Henckels?
I only have one, don't really know anything about it. I saw this one at an antique store and thought it was interesting because the small pen blade has a half stop but the larger does not. It was affordable and didn't really need any other reason to grab it.