The two horses pulling the carriage are the salt and pepper shakers of this vintage Marutomoware set - circa 1930s.  The carriage acts as the mustard pot and is fixed to the base.  Just like most Marutomoware sets - it can be found in different color patterns.

Marutomoware horse and carriage condiment salt and pepper shakers
Marutomoware horse and carriage condiment salt and pepper shakers