Moneys, credits, securities and other intangible personal property within the state not employed in carrying on any business therein by the owner shall be deemed to be located at the domicile of the owner for purposes of death taxation and, if held in trust, shall not be deemed to be located in this state for purposes of death taxation because of the trustee's being domiciled in this state; provided, that if no other state subjects such property held in trust to death taxation, it may be deemed property having a taxable situs within this state for purposes of death taxation.