Possibly a Thomas Ibbotson Infill Smoother
The problem with a number of my infill planes is that the makers name is not marked on the body of the plane.
Tag infill plane
Norris Infill Panel Plane
Amongst by collection of infill planes is a fine 15 1/2 in. Thomas Norris Panel Plane.
Neat Little Early Infill Plane
One of the planes I inherited was a nice little early infill plane. It is 6 5/8 in. long with a 1 3/4 in. wide blade. With the blade held in place by a wooden wedge.