粉本 is read as ふんぽん (fumpon) and means copy.
ふんぽん
fumpon
こ
flour
ふんまつ
fine powder
こなゆき
powder snow
こなみるく
milk powder
こなごな
in very small pieces
ふんたいこうがっかい
Society of Powder Technology, Japan
ふんまつじょう
powdered
こごめ
crushed rice
ふんたい
powder
こんぽん
foundation
ふくとくほん
supplementary reader
まるほん
reciter's book