Qing egg shell bowl

Hello all. ANY info at all greatly appreciated ... think it's a Chinese egg shell wine bowl (or cup?) from the Qing Dynasty period, early 1800's to 1870's under one of 3 Emperors ( & son's ) Jaiqing to Tongzhi ... six-character seal mark within a square in red enamel of the period ( Reign? Title? Period? make?) ... bowl/cup is paper thin and light shines through ... a finely painted green dragon graces the outside with red, yellow, purple and blue flowers of some type surrounded with yellow and gold accents as well as green leaves. A red dragon in red enamel is in the inside bottom of cup. Rim 8cm, 3 3/16" wide ... Base 3.6cm, 1 7/16" wide and height 7.8cm, 3 3/16". The cup alone weights 36.1 grams. No idea what the 3 woods which make up the stand are made of.