Any release or disclaimer mentioned in section one of this article may be effected by a written instrument signed and acknowledged as a deed by the person or persons having the general power to appoint mentioned in that section; and such instrument may be delivered by filing it for record in the office of the clerk of the county court of the county wherein the will, deed or other instrument creating such power is recorded. Such clerk shall record such instrument of release or disclaimer as a deed is recorded, index it, and note a reference to the record thereof on the margin of the record of the will, deed or other instrument creating such power.