1930s? Shanghai Silver Dollar Bar Token

I'm hoping to learn more about this coin, here is what I do know.

This was a token for use at the Silver Dollar Bar in Shanghai. The Address is 18-20 Rue Chu Pao San.
The denomination was equivalent to 10 cents but not official as far as I know.

The diameter of the coin is 21.1328 millimeters, I used a micrometer to measure.
The weight is 4.6 grams.
The metal composition is unknown to me.
The edge is smooth.

Here is two links I was able to find the little bit of details through a few hours of internet searching.

Here is one I found that was sold
https://www.icollector.com/SHANGHAI-white-metal-10-cent-token-4-70g_i23025391

Here is some history of the Rue Chu Pao San road, or Blood Alley as soldiers called it
http://china-mint.info/forum/index.php?topic=11756.0

And finally the pictures of the coin in my posession.

An added note if anyone could translate the Chinese on the back that would be appreciated too.

Thank you in advance to anyone who can help!

bar token from Shanghai French Concession during 1920s~30s

'Blood Alley' (officially named Rue Chu Pao San; now Xikou Lu) was a short road between Rue du Consulat and Avenue Edward VII, just off the Bund. Blood Alley was so called because of the frequent fist fights between foreign sailors and soldiers, especially during periods of international tension.