The blue-ink autograph on this 1982 Fleer card #320 appears in the lower center of the card face, executed in bold, flowing cursive consistent with known Ferguson Jenkins exemplars; the prominent capital "F" and sweeping letterforms of "Jenkins" display the confident pen pressure and characteristic upstroke trailing edge associated with authenticated examples of his signature. Crown Grading's own signature review is further supported by an independent authentication from James Spence Authentication (JSA), Basic Certification number CN82351, whose tamper-evident sticker is affixed to the reverse of the Crown slab and may be verified directly on JSA's public registry. This dual-layer authentication — Crown's in-house review alongside JSA's independent certification — provides collectors with a high degree of confidence in the autograph's legitimacy.