If the bond is given and approved the trustee at the purchaser’s request shall execute, acknowledge and deliver to him a certificate of sale or purchase giving a reference to the deed of trust, fact of sale and purchase. And if redemption is not made within the year as so provided he shall thereupon execute to the purchaser or his heirs or devisees good and sufficient deed of conveyance upon the presentation of such certificate or showing of reason for its nonproduction to the satisfaction of the trustee. The rights, interests and estates of any of the parties may be conveyed by deed as interests in land are conveyed and trustee’s deed may be made to the original purchaser and shall inure to his grantees. If the certificate of sale or any conveyance of the purchaser’s interest is recorded the purchaser and his grantee shall give a sufficient recordable acknowledgment of redemption if the same be made. Any prematurely executed trustee’s deed shall operate as a certificate of sale by the trustee, and if the trustee dies, becomes incapable or cannot be found the court may summarily and on ex parte application of the purchaser appoint a successor or commissioner to execute a good and sufficient conveyance in completion of the trustee’s sale if redemption be not made within the year provided. Both the certificate of sale and purchase and deed and the recitals therein shall each be prima facie evidence of the recitals therein.