Lot of 4 Flow Blue Willow Coffee Cups Mugs Japan Vintage

Lot of 4 Flow Blue Blue Willow Coffee Cup Mug Restaurant Ware Japan Vintage These mugs measure approx 3.5 tall x 3” diameter. Each one is slightly different dimensions though, so don’t appear to be from the same original set. Condition: The inside of each handle has a hole in it (see picture #5). There is also crazing of the glaze.