Coin was struck only in y.15 and y.16 of Abdulmecid`s reign.
And There are very significant differences between these two year subtypes:
Obv: y.15 - left middle flower on the branch right of toughra is same as other two flowers
y.16 - left middle flower on the branch right of toughra is longer then other two flowers
Rev: y.15 - Zero of "10" is near of "1"
y.16 - Zero of "10" is far of "1"
I think it should be listed even as two absolutely different subtypes. I checked more than 50 coins in the Internet resoursec, - result is same. Its really different design, and should be listed as sub-KM#
I sent request for adding this image in the coin sheet. Hope it will helps .
thanks.