Some additional context in Kramer land,
a "B" Serial plate with 5 digits will never be a USA Kramer unless its a mutt/unoriginal, parts. Those neckplates, like in this case with 5 digits will say "Neptune, New Jersey" but do not indicate "made in" (not that the "American" series was made in USA either, but thats a different animal).
a B- plate 4 digit "USA" wood neck Kramer would be early. Beak neck. Maybe even strathead. Those pointy headstocks, especially with that logo (the big font Pyramid logo) would be more of a late E plate (E plates did extend into 5 digits, but not like E99999, it went up to around E12000-ish) or F- plate.
Off the top of my head, to my recollection C-plates may have said "Made in USA", I've only had one C-plate Kramer, and that was almost 20 years ago. Those would be beaks and Bananas, headstock wise.