is this a mint error? new to the game I think it is NSF

I found a penny with some defects? not sure if it is anything or not. any info would be great
thanks
don

i have a uncirculated Canada 1969 coin set, the 10 cent has a mark on the bottom right corner of the date 9, looks like a c? can anyone tell me more info on this thanks don how do i put a picture of it on here? http://www.coinsandcanada.com/forum/class/test/Tue_May_12_20_39_49_3.jpeg