chinese teacup set 1/125 pc

The item listed is one of the smaller plates of the set, very artistic and include alot of gold trim. Seems to be hand painted. This set was my grandmother and was passed down to me. She has had this set for over 20 years. The set was given to her while she was working as a maid/janitor, at a japanese/chinese house. The owners gave her the set when they decided to move. I looked on the internet for some stamps similar to the stamp on the pieces and found that

Da Quing Qianlong Nian Zhi "Qianlong Period Made" 

Qianlong six characters / double frame

Tentative Period 1940 - 75

Any additional information of who made it, history, value, etc would be much appreciated!