The section 13(a)(4) exemption applies to retail establishments
engaged in the selling of goods. It does not apply to service
establishments. If the establishment is a service establishment, it must
qualify under section 13(a)(2) in order to be exempt. A retail
establishment selling goods, however, also may perform services
incidental or necessary to the sale of such goods, such as a delivery
service by a bakery store or installation of antennas by a radio dealer
for his customers, without affecting the character of the establishment
as a retail establishment qualified for exemption under section
13(a)(4).
