Thread:CFDrewbert/@comment-27565452-20160107205039/@comment-27565452-20160108002618

Yup. The major arcana consists of 22 cards, usually labelled from 0 to 21. See this:

https://en.wikipedia.org/wiki/Major_Arcana#List_of_the_Major_Arcana

As you can see on your tarot Ulith, there is a roman number 15 below the picture, which corresponds to 'The Devil' on the list.