"Late Roman Light-Colored Ware"

Today I added a somewhat unusual example of "Late Roman Light-Colored Ware" to the page http://classics.uc.edu/troy/grbpottery/html/lr-lightcolored.html. The fabric and slip are good for the ware. The form doesn't seem to be directly paralleled at Istanbul (see the biblio for full reference). The treatment of the exterior surface is also distinctive.