亲笔签字 meaning in Chinese

autographic signature
handwritten signature

The trader handed up a certificate, signed by mr. shelby, which the young man took with the tips of his long fingers, and glanced over carelessly .
那贩子把谢尔贝先生亲笔签字的推荐信递上去，那年青人用修长的指尖接过来，漫不经心地瞧了一眼。
Draft a contract , bilateral holograph signs , have legal effectiveness . do not pass or suggest to pass intermediary , although have cost , safe nevertheless
拟订一份合同,双方亲笔签字,有法律效力.不过还是建议通过中介,虽然有费用,不过安全