The provisions of §§ 110.14, 110.15, and 110.22 to 110.25 shall not apply to the purchase or sale by junk dealers or junk collectors of any rags, bottles, other than milk or cream bottles, secondhand sacks or bags, other than cement sacks or bags, barrels, cans, shoes, lamps, stoves or household furniture except musical instruments or scrap iron, when bought and sold for scrap; or to the purchase or sale by secondhand dealers of household furniture with the exception of all musical instruments, typewriters, accounting machines, adding machines, check writing machines, comptometers or other similar equipment, or the purchase or sale of sacks, bags, or rags, other than cement sacks or bags.