1. Font size: The font of Kangxi Bao Tong in Dachang Edition is bigger, rounder and fuller in overall feeling. Xiaochang version of Kangxi Bao Tong font is relatively small, the font is also relatively slender, and the overall feeling is relatively slender.
2. Shape characteristics: between the word "household" and the word "light" under the word "treasure", Dachang edition has a little point, but Xiaochang edition does not have this little point.
The above is the main difference between Kangxi Bao Tong Dachang and Xiaochang. You can also consult professional books or antique experts for more information.