The small orifice diameter and short neck make this highly polished LB sherd a jar. An Pavel suggests that the high gloss means LB1--rather crumbly fabric also suggests this. There are horizontal rotation striations on the vessel exterior and annular impressions on the interior. The external surface is highly abraded, but the external polish lines also appear to be horizontal. The polish stops on the external surface right below the rim. The internal surface is 90% covered in pink corrosion. There is also a mica pop on the internal surface and some odd horizontal lamination on the internal neck, perhaps where a layer of clay curled over the rim from the exterior meets an internal layer. The core 2 slip layer which is polished is clearly visible in the core, but only with the jewelers lens, because it is almost the same color as the rest of the core, save for a small line of corrosion which has developed between the two clay layers. Some medium sand particles are visible in addition to the fine sand, but the rest of the fabric is so well sorted that I consider it well-sorted. The intense internal surface corrosion makes the hardness measurement difficult to support here. Breaks are smooth.
From Interior to Exterior