No honorably discharged soldier or sailor shall be required to procure any license to follow the occupation of canvassing for the sale of books or for the occupation commonly known as that of “book agent” or for the occupation of auctioneer. The certificate of honorable discharge of any such soldier or sailor shall be conclusive evidence of the right of such soldier or sailor to follow the occupations hereinbefore mentioned without having procured a license therefor.

22 Del. Laws, c. 389, §§ 1, 2; 26 Del. Laws, c. 180, § 8; Code 1915, §§ 213, 215; 32 Del. Laws, c. 7; Code 1935, §§ 188, 190; 42 Del. Laws, c. 66; 47 Del. Laws, c. 75; 30 Del. C. 1953, § 2116