(a) Except as otherwise provided by the terms of the governing instrument, all securities in a fiduciary estate, whether held by the fiduciary or an agent for the fiduciary, shall be stored separately from any other securities, except as provided hereafter in this section or in § 3311 of this title.
(b) A bank or trust company may store together securities of the same class of the same issuer held by it as fiduciary or as agent for a fiduciary or nonfiduciary (but not its own securities) and may combine the securities so stored together into 1 or more securities of the same class of the same issuer, provided the records maintained with respect to those securities disclose the capacity in which they are held and provided there is no written objection from either a cofiduciary or the person for whom it is acting as agent.