Translate this brass medallion?

Hello,

I was wondering if someone could help me translate this brass medallion that was from the Japan Bowl in 1979 Tokyo, Japan. Thanks,

Pictures: http://www.flickr.com/photos/67661627@N05/

- Jake

From top to bottom, right to left.
尚瑞院
月字號二馬牌
天啓四年三月

2nd line is written in chinese (but this is very basic chinese letters).
天啓四年 is not japanese era name.

So I searched "尚瑞院", and got some results.
http://goo.gl/51xBX
http://goo.gl/cKV9m
National museum of Korea Collection Database.

The medallion is old korean horse pass (something like tickets).

Maybe 尚瑞院 is Joseon Dynasty's public office.

二 is 2.
馬 is horse.
牌 is piece (like domino pieces).

Joseon Dynasty used chinese era name,
then 天啓四年 is AD 1624.
三月 is march.