Small ottoman coin identification

Please help me to identify coin which I can't find. 

Diameter about 18 mm

Weight - 0.8 gr

Year looks like 1123

Thanks 

Year 122x 

Suspected that it's 1223 but haven't find it there as well.. 

Neither did I. Looks like RY 26? Try looking in Egypt also.

I think I can see enough of the mint name to be confident it is Constantinople.

it resembles KM#601 in many ways, including the RY, but that is a larger coin,

There isnt a smaller type of this pattern in Krause.

Mr. Midnight

it resembles KM#601 in many ways, including the RY, but that is a larger coin,

There isnt a smaller type of this pattern in Krause.

I went with that one as well but couldn't reconcile the diameter difference.  If KM# 601 is 28 mm then the OP's would have to be 26 mm with the edge wear to be the same. Also the weight is much too low.

KM#601 is  2 Zolota  or 60 Para.

 It seems there might have been a 1 zolota or 30 para coin issued in that time, that is not in Krause.