1. The words “itinerant vendor”, for the purposes of sections 150.380 to 150.460, shall mean and include all persons, both principal and agents, who engage in, or conduct, in this state, either in one locality or in traveling from place to place, a temporary or transient business of selling goods, wares and merchandise with the intention of continuing in such business in any one place for a period of not more than one hundred and twenty days, and who, for the purpose of carrying on such business, hire, lease or occupy, either in whole or in part, a room, building, or other structure, for the exhibition and sale of such goods, wares and merchandise and do not have a permanent place of business in Missouri.

2. The provisions of sections 150.380 to 150.460 shall not apply to sales made to dealers by commercial travelers or selling agents in the usual course of business, nor to bona fide sales of goods, wares and merchandise by sample for future delivery, nor to hawkers on the streets or peddlers from vehicles, nor to any sale of goods, wares or merchandise on the grounds of any agricultural society during the continuance of any annual fair held by such society, nor to auctioneers when selling goods, merchandise or property for customary auction fee or commissions.