(a)Every Certifying Surgeon shall keep bound books containing certificates in Form No.5 respectively in foil and counterfoil. In each book the form shall be numbered consecutively and shall be printed on cloth-backed paper. The foil and counterfoil shall be filled in and the left thumb mark of the person or his signature in whose name the certificate is granted shall be taken on them. On being satisfied as to the correctness of the entries made therein and of the fitness of the person examined, the Certifying Surgeon shall sign the foil and initial the counterfoil and shall deliver the foil to the person in whose name the certificate is granted.The foil so delivered shall be the certificate of fitness granted under Section 69. All counterfoils in a book shall be preserved by the Certifying Surgeon for a period of at least two years after the issue of the last certificate in that book.