Cellar Salts? A little help?

Hi, My guess is that this pair of silver pieces are salts? Am I correct. They seem large for salts, they are 2 1/4" high and two inches across. They are unmarked with the exception of 303, an S below the number and an A. The mark is on the inside rim of one of the pieces. They have the owners name and social security number engraved on the bottom (not a good practice today). I am certain that they are coin or early sterling. Any ideas?
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