Bill of sale subject to defeasance, etc., and priority of

(1) If the bill of sale is made or given subject to any defeasance or condition, or declaration of trust, not contained in the body thereof, that defeasance, condition or declaration shall be deemed to be part of the bill, and shall be written on the same paper or parchment therewith before the registration, and shall be truly set forth in the copy filed under this Act therewith and as part thereof, otherwise the registration shall be void. (2) If two or more bills of sale are given, comprising in whole or in part any of the same chattels, they shall have priority in the order of the date of their registration respectively as regards those chattels.