Fig. 9
From: Damage function for historic paper. Part II: Wear and tear
Left accumulation of large missing pieces (text missing) per handling, i.e. leafing through the entire document once as if reading/searching for information, of paper (per 100 sheets) depending on the DP of paper. Right number of handlings until such paper develops one large missing piece per 100 sheets, depending on their DP. LMP large missing pieces (i.e. a piece with text missing)