The proper title to this medal is as above, and full details reference its issuance, plus pictures, are available on the VAC website at:
http://www.vac-acc.gc.ca/general/sub...group04/fgstar
Click on the photo in the link above for a larger version which you can print off.
Campaign medals such as this are available regularly on Ebay as well as through collectors. Because there were 230,000 issued, they are neither rare nor terribly expensive.
<addendum>
The 5th Mounted Rifles were a Boer War organization, as I discovered doing the following Google search:
http://www.google.com/search?as_q=&n...h=&safe=images
Have fun...