I hadn't heard the term strawboard before, so if anyone is curious it is "A coarse yellow cardboard made of straw pulp." https://www.wordnik.com/words/strawboa

I hadn't heard the term strawboard before, so if anyone is curious it is "A coarse yellow cardboard made of straw pulp." https://www.wordnik.com/words/strawboard https://www.wordnik.com/words/strawboard