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
ふんたい
powder
こんぼん
foundation
ふくどくほん
supplementary reader
まるぼん
reciter's book
はんぽん
woodblock-printed book