Agreements hereafter made between two or more of the stockholders of a bank pursuant to which stock of the bank held by them is transferred to or deposited with a trustee or agent for the purpose of vesting in such trustee or agent the right to vote thereon, shall be invalid; provided, that nothing herein contained shall prohibit a stockholder of a bank from depositing stock of a bank with a trustee or agent under the terms of a voting trust agreement presently lawfully in effect.

L.1948, c. 67, p. 261, s. 90.1.