A vintage patent diagram from 1924 illustrates a baseball and related equipment in precise technical drawings rendered in black ink on aged, cream-colored paper. The composition features a large spherical baseball at the top with detailed stitching, accompanied by smaller studies of a curved bat and measurement scale, all labeled with patent information and inventor signatures in a formal, scientific manner. Printed on smooth white card stock and made to order, artwork on the front, blank inside, envelopes included in every set. A handwritten note that arrives as an independent artist's work.