Protection Pendant Charm

[heavenguy]

I also want to share with you guys this cool Pendant I found at antiques store. I also found a letter with it dated 1935 by a pediatrician in Beijing. I'm assuming is at least republic Period because of the letter. I doubt that is much older... Also the person says its an replica from a Qianlong imperial Charm. I think is imitating Jade. Usually the ones I found are made of silver, some type of metal or cloisonn?. This one is made of porcelain...
Hope you guys like...

[heavenguy]

I'm becoming a Republic Period Collector... Loving this era...

[peterp]

This is a ruyi shaped imitation of a Chinese lock, depicting a dragon and these: en.wikipedia.org/wiki/Sanxing_(deities)

[heavenguy]

Thank you Peterp. All the pendants I saw had the names of the deities but this one has them carved into the porcelain. Anyways, thank you for your time.