I have few coins which I believe are Chen dynasty 5 zhu coins as mentioned on Gratzer - Fishman book named One thousand years of Wu Zhu Coinage, B8.31. These coins have inner and outer rim on both sides.
This coin is on Numista: N#248642.
Numista coin is Hartill 10.22 and Hartill book says that it has no obverse inner rim, as mentioned also on coins information.
My question: Which Hartill code is my coin and should we add it on Numista, because I think we don't have that here.
Also according to Zeno.ru, that coin type is Chen Wu Zhu coin (Chen Dynasty 557-589).
My coin: 4.3 grams and 25.9 mm.

