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.
Carlton was designed in the early 1900s for the Stephenson Blake Typefoundry. Its clean, generous capitals and understated yet detailed lower case alphabet have refound popularity in recent years. The elegance of Carlton is best used for displays with large letter and word spacing.