what does this stamp mean? SHANK1/2014K

[sweetleila]

I just bought this ring from an antique store for $70. I like the ring, but I did buy it thinking it was real gold. The inside of the ring is stamped SHANK1/2014K. Can anyone tell me anything about this style of ring and the stamp?

Thank you for your replies.

 

[sweetleila]

another pic.

 

[sweetleila]

last one.

 

[lyra]

That inscription means it's 1/20 gold filled. It is not gold, but 14k gold filled.