Label says Southern Song Dynasty Chinese 1241-1252 2 Cash, not found on numista

Lightly magnetic copper 2 cash that I can't find in the catalog when I enter its data,

5.9g,

~29.5mm

Emperor Lizong,

Obv: Kangxi Tongbao,

Rev: Upper Jiu, or the number 9 (probably a date number)

A near match was found on N#168369 except my coin must  be the 2 cash version as this coin has a larger diameter. I just put the number 9 in the year slot and found its smaller cousin coin.

N#168427

Although Hartill describes it as "very common", a genuine coin should not be "slightly magnetic" and should have the correct weight of 2 cash.

Yes, I had this coin in my search again, but must have not thought it was it, since I at first didn't see the reverse number 2 until I looked closer on my coin. Kinda make me wonder if this is a crude imitation made from later usage of this same design but with iron impurities?

Frenchlover

Although Hartill describes it as "very common", a genuine coin should not be "slightly magnetic" and should have the correct weight of 2 cash.

Being slightly magnetic is completely normal for cash, small bits of iron in the cash alloy causing magnetism is the main reason. 
 

These Southern Song cash were cast from rather crude alloys, with high lead, tin, and iron commonly found in the bronze. Additionally, both the weight and diameter are fully within reason for a 2 cash, which you can see clearly when browsing examples on Zeno. There is absolutely no reason to think this coin isn‘t genuine.