"Salt wasn’t always shake-able. In the early part of the 20th century, the Morton Salt Company of Chicago added magnesium carbonate to their salt to make it flow. Before that, salt was clumpy and rough, served in little containers (salt cellars) that you’d pinch your serving out of. Of course, if you were fancy, you’d have something like these silver seashells, with accompanying tiny spoons."
The Exter Salt. Acquirer: Charles II, King of Great Britain (1630-85). Provenance: Given to King Charles II by the City of Exeter, 1660 A silver-gilt table salt in the form of a tower with cylindrical corner turrets and a tall central turret with an open gallery and domed roof above, resting on a chased mound supported by dragons on ball feet, the salt is encrusted with jewels. The body of the salt (or spice box) is fitted with small drawers.