>They point out that each Gutenberg Bible printed on vellum required the skins of 300 sheep. Even that doesn't say much about its value. I have no idea the sca

>They point out that each Gutenberg Bible printed on vellum required the skins of 300 sheep. Even that doesn't say much about its value. I have no idea the scale of the sheep industry in these times. Presumably people were growing up sheep to make use of the entire sheep, not merely to create bibles. It might be better to consider what that sheep leather might have been used for otherwise if it didn't have a buyer in the form of a printing press.