The rate of the tax imposed by LMC 3.40.010 shall be one-half of one percent of the selling price or value of the article used, as the case may be; provided, however, that during such period as there is in effect a sales or use tax imposed by Snohomish County, the rate of tax imposed by this chapter shall be four hundred twenty-five/one-thousandths of one percent. (Ord. 555 § 2, 1970)