Rashi on Numbers
את יריעת המשכן THE CURTAINS OF THE TABERNACLE — the ten lower ones,
Tur HaArokh
ומכסה התחש אשר עליו, “and the covering of Tachash hide which was over it, etc.” Ibn Ezra writes that the verse abbreviated the description, omitting reference to the covering consisting of the ram’s hides dyed red, which also covered the Tabernacle. (Compare Exodus 36,19) Some commentators believe that both of these coverings were glued to one another so that they formed one cover.