"Individuals or groups of 25 persons or less demonstrating
under the small group permit exemption of 50.19(b)(1) shall not be
permitted to erect temporary structures other than small lecterns
or speaker's platforms. This provision is not intended to restrict
the use of portable signs or banners." (36 CFR
50.19(e)(8)(v).) (Tr. Ex. 119.)
"No signs or placards shall be permitted on the White
House sidewalk except those made of cardboard, posterboard or
cloth, having dimensions no greater than three feet in width, 20
feet in length, and 1/4" in thickness." (36 CFR 50.19(e)(9).) (Tr.
Ex. 119.)