External color should be 7.5YR 7/1 Light Gray. There is just enough \\\'come-back\\\' on the neck portion to appear biconical instead of conical. Very difficult to say if this sherd is from an LB bowl with a very minor shoulder, or the upper portion of a jar/pot. One corner may show the delamination of the internal slip, around 1mm thick. While the listed external and internal colors are light grays, they likely represent heavy corrosion as there are traces of a Very Dark Gray color on the lower neck which is more characteristic. In this way 60% of the internal and exterior surfaces are covered by light gray corrosion. The color difference between core band 2 and bands 1 and 3 is very minor, they could be merged into one, but I separate them here. This may represent the slip layers, or perhaps simply the firing time. While fine sand is the major inclusions component here, medium sand particles are also present. Rotational striations are present on both surfaces, and mica is visible in the surfaces, no popping. Breaks are smooth.
From Interior to Exterior