'Tanned' in the Bible

rams’ skins dyed red, porpoise skins, acacia wood,

You shall make a third covering for the tent of rams’ skins dyed red, and a fourth covering above that of porpoise skins.

and rams’ skins dyed red, and skins of porpoises, and acacia wood,

He made a [third] covering for the tent of rams’ skins dyed red, and above it a [fourth] covering of porpoise skins.