The shell bone script of character Rice Wine Jar are
Jars with different shapes. The jars are full with rice wine. Ancient China had no grapes, so no wine from grapes, only from rice or other grains.
The standard script of the character is
There is another character Jar - 酉 (Post 104), which has the similar meaning. However, they are a little bit difference. 酉 is Jar or Jug as a tool to make wine or other liquid foods, such as vinegar, soy sauce, etc. 畐 is a container of wine, most likely full with wine.
畐 is almost not used as a single character nowadays. It has been abandoned in simplified Chinese. However, it is a part in many characters. It is very important to know 畐 for you to understand any character which has 畐. For example, 福 - Fortune (Post 218), and 富 - Rich (Post 195).