Final answer:
Albrecht Durer's signature is found on the sign above Adam's shoulder in the print 'Adam and Eve,' which dates back to 1504. This celebrated work demonstrates Durer's pursuit of perfect proportions, serving as a Renaissance advertisement of his artistic skill.
Step-by-step explanation:
Albrecht Durer's signature can be found in his print Adam and Eve, which showcases his mastery in achieving perfect proportions and measurements in his figures. He included his signature on the placard above Adam's shoulder in the artwork. The signature also contains the date, indicating that the print was created in 1504. Durer's use of fine lines and the display of idealized figures surrounded by animals reflects the Renaissance artist's quest for perfection and serves as an advertisement of his exceptional skills. The presence of thousands of fine lines in this masterpiece is indicative of the intricate work that Durer was known for, making it a Renaissance ad of his abilities as an artist.