I have a set in which only Rooks, Knights, and Cannons are the same for the
two sides; however, I believe that I bought this xiang qi set in the late
1960s, and that the date of purchase predates the great simplification in
which Mao's government reduced the number of ideograms in everyday use
from 50,000 to 5000.
Perhaps the great simplification changed the look of Xiang Qi?