SDCL § 40-15A-7: License posted in place of business--Pocket card.

Each license shall be posted in a conspicuous place in or at the place of business of the licensee for inspection by any person. Each licensee under this chapter shall be issued a pocket card containing the license number of the applicant and his authority as a livestock dealer, packer, or packer buyer. Such card shall be carried and maintained and be displayed upon demand as authority as a licensed livestock dealer, packer, or packer buyer.