Which preposition to use with unclosed

before Occurrences 1%

It must unclose before it, revealing to sight and bringing to enjoyment its riches and its depths."

beneath Occurrences 1%

For my part, the Shakspeare of my mind's eye is henceforth to be a personage of a ruddy English complexion, with a reasonably capacious brow, intelligent and quickly observant eyes, a nose curved slightly outward, a long, queer upper-lip, with the mouth a little unclosed beneath it, and cheeks considerably developed in the lower part and beneath the chin.

for Occurrences 1%

"That weight of wood, with leathern coat overlaid, Those ample clasps of solid metal made, The close pressed leaves unclosed for many an age, The dull red edging of the well-filled page, And the broad back, with stubborn ridges roll'd, Where yet the title stands in tarnished gold!"

to Occurrences 1%

Maestro Guglielmi had a perfectly colorless face, a prominent, eager nose, thin lips, that perpetually unclosed to a ghostly smile in which the other features took no part; a brow already knitted with those fine wrinkles indicative of constant study, and overhanging eyebrows that framed a pair of eyes that read you like a book.

Which preposition to use with  unclosed