Many typefaces designed with a pen on paper (especially those from the 20th century) were licensed by different foundries, and were later independently digitized by them. Some special characters such as @ or the euro sign, were independently added later. Those “alternate cuts” are different digital versions of basically the same typeface design. They often vary in character set, letter proportions and kerning. Some are published under different names.
Linotype’s Serlio looks like a text face, but it is a display type with small capitals in place of lowercase letters. It has a narrow width and fine, delicate serifs and hairlines.
With just a bit more flair than most text types modeled on the classic roman letters, Serlio contrasts nicely with old style typefaces such as Garamond.