Scott A

Well I am an avid collector of Belgian Congo coins from the beginning (1887) to 1999.  There are a numerous overdates in this series.  Given the condition of your piece, it would not be worth much of any premium.  Now if it was mint state it could be worth a decent price.  That being said, there are two overdates that I am aware of for this date, 1925/3 and 1925/4.

Belgian Congo 1947 5 Francs NGC MS65.  Only three graded this high at NGC with one higher.

Check out my complete Belgian Congo Collection in the Custom Sets.  "Best World Set" for 2014

This is not a new coin to me, but I did have it regraded from an ICG (PF68DCAM) holder to an NGC holder (PF66), which I do believe it the proper grade.  The coin is an extremely rare Belgian Congo/Democratic Republic of Congo 1965 silver 100 Francs piece, which is far rarer than it's gold counterparts.  In nearly 20 years this is the only example that I have found, and I am always on the hunt.  If you ever find another one or one of the other denominations in silver, please let me know.

My most recent acquisition is a Mexican 1800 1 Real in NGC MS63.  Pretty coin that will join mt 1800 1/2 Real.  I think I will try to put together a mint state 1800 silver set.