Offer or expose any article for sale.

Display any sign, placard, or other form of advertisement.

Solicit alms, subscriptions, or contributions.

other than an authorized employee, to touch or handle objects of art or scientific or historical objects on exhibition within the specified buildings or grounds; or

to step or climb on, remove, or in any way injure any object of art, exhibit (including an exhibit animal), equipment, seat, wall, fountain, or other erection or architectural feature, or any tree, shrub, plant, or turf, within the specified buildings or grounds.