I list the 22 and the 32 together, because they really are so similar. While the 32 is a better machine, in my opinion, some consider the 22 to me more beautiful.
The model 22 was from the 1950’s. The 32 came 13 years later 1960’s. Same designer. 32 more squared off. (I presume they corrected some design flaws and weaknesses of the 22.)