prospectus
(10) The term “prospectus” means any prospectus, notice, circular, advertisement, letter, or communication, written or by radio or television, which offers any security for sale or confirms the sale of any security; except that (a) a communication sent or given after the effective date of the registration statement (other than a prospectus permitted under subsection (b) of section 77j of this title ) shall not be deemed a prospectus if it is proved that prior to or at the same time with such communication a written prospectus meeting the requirements of subsection (a) of section 77j of this title at the time of such communication was sent or given to the person to whom the communication was made, and (b) a notice, circular, advertisement, letter, or communication in respect of a security shall not be deemed to be a prospectus if it states from whom a written prospectus meeting the requirements of section 77j of this title may be obtained and, in addition, does no more than identify the security, state the price thereof, state by whom orders will be executed, and contain such other information as the Commission, by rules or regulations deemed necessary or appropriate in the public interest and for the protection of investors, and subject to such terms and conditions as may be prescribed therein, may permit.