Katani Japanese Porcelain Tea Set

A Beautiful Japanese Katani Tea Set
Unfortunately tea sets aren’t my specialty subject and my knowledge is limited, 
From some research I believe this to be in the style of Katani, which apparently means ‘Nine Valleys’. 
It looks to have some age, over the years a few repairs have been carried out and those too look fairly aged. 
I would assume it’s porcelain, the cups are particularly light.  The larger items are more substantial in weight. 
I would also assume hand painted? 
Decorated with cranes and flowers - the colour way is very lovely and I cannot see any other set the same as these, 
There’s a stylised cloud shading over the set,  looks quite dramatic on display.  
The set will need a light clean before using. 
The set comprises of: 
1x Tea Pot - Approx 20cm tall 
Decorative bamboo style handle
No chips to lid or rim 
1x Large Sugar Bowl? - Approx 15cm tall 
Small chip to lid 
1x Large Jug - Approx 13cm Tall 
Large visible repair to spout
2x Larger Plates - Approx 21.5cm across 
No Visible Damage 
4x Medium Plates - Approx 18.5cm across
No Visible Damage 
6x Saucers - Approx 14cm across 
No Visible Damage
3x Cups - Approx 10cm across 
No Visible Damage 
1x Large Bowl - Approx 16cm across rim
Large visible repair and chip to rim