Maker's Mark

(above) This is how the Makers Mark on  the interior of the Ukko model (Special-Build) Generation-5A appears; it will match the code on the Branded Sales Tag attached to the instrument as proof of it's unique authenticity (photograph on right/at bottom)... Additionally, details about the creation & attributes of every crafted instrument are meticulously recorded within the volumes of Luthierium Catalogs...