I apologize for my English. I read the artiche Patrick Kelly Understanding Blade Properties
http://www.myArmoury.com/feature_properties.html
My question is about the sections of swords. The article by Kelly, highlights a difference between section lenticular and section narrow fullered.

Ewart Oakeshott: The Man and his Legacy: Part II article by Patrick Kelly and others, (http://www.myArmoury.com/feature_oakeshott2.html ) he say: sword type XIII section lenticular, but in reality because there is a fuller, section should be narrow fullered and not lenticular.
Help me understand. Appearance patiently.
Thanks for your reply.

I think the difference is in semantics-they are two ways of saying the same thing. The term lenticular is often loosely applied to a blade with the correct shape whether it has a fuller or not. On blades such as the type XIII where the fuller does not extend the full length, the section beyond the fuller is sometimes lenticular so both sections actually exist in a single blade, which may partially explain the crossover in terms.

I am wondering if there can be such a thing as a "fat lenticular" section (migration era swords come to mind), versus a narrow lenticular (similar to the narrow lenticular fullered, just not actually fullered)? Just looking at text photos, it seems like sections became more narrow as the viking era approached, in addition to the appearance of fullers.

Actually, I think that the image should be broken into 2 parts. The first is "blade cross sections" the seccond "fullers". You could concievably match any fuller with any blade cross section (though hollow ground with oposing fullers seems unlikely off the top of my head)

thanks for your answers.