Scanned ephemera from advertising, etc.

What would it be worth to you if I recreated these in HTML?

"Here are some more qualities that make a work of art valuable: it is “representative” (it looks like—and was executed in the same era as—other valuable works by the same artist); it has “a good provenance” (important people have owned it before); it is “included in the literature” (critics or historians have written about it in a museum catalogue or book published by a university press). Adolph Gottlieb paintings should have sun-discs in them. Cy Twomblys are best with squiggles. When it comes to Ellsworth Kelly, the more “totemic” the better."