I recently acquired a coated 14" Dallmeyer Anastigmat (jpeg attached) f:5.6 -f:64. It seems to be a Tessar type from the reflections, and I assume this is a late version of the aerial lens. The "flange" is a part of the barrel, and the barrel is finished in a wrinkle or rough black. The Vade Mecum thinks it's a Serrac type, which would also be a Tessar.
So has anyone used one like this and if so, what do you think of it? I'm hoping to shoot some with it this weekend.