Help Identify this for me

My father found this in upstate New York by the old hospital in Waterloo. It looks like a medallion Christopher Columbus Discoverer 1492.

My father says it also has a date of 1893 from the world's fair, but I did not see it. but the back is blank. Please look at it and see you have any info on it who made it where it came from and is it worth anything.

Sincerely

MF Bell

 Limited information, in words only 

https://nnp.wustl.edu/library/advancedsearch?contenttype=&imagetype=&fullsearchterm=Christopher+Columbus+Discoverer+1492 

 Quote: 

Obverse - Bearded bust of Columbus wearing laurel wreath to left in depressed circle. 

Legend in outer band > Christopher Columbus Discoverer 1492 

Reverse - Scene of exposition, and legend in band around > 

The World's Columbian Exposition, Chicago Illinois U S A, May to Oct 1893 

Thanks for your reply but as I said there is nothing on the other side it is blank , flat. the question is ? Is this a commemorative type medallion for the world's fair in 1893 ? I need to know where it came from and who made it.

Sincerely

MF bell