victoria silver shilling 1887/1877

Hi,
Wonder if anyone can help,
ive got a 1887 victoria silver shilling coin, dated 1887 on the reverse side, but on the face side either side of the queens head are two dates, 1887 and 1877, is this a misprint or suposed to be like this?
Ive up loaded a picture, any answers would be a great help
Many thanks
sam

 

Log in or Sign up to hide this ad.

This was done after it left the mint. Most likely celebrating a 10 year anniversary of something.