Numismatist

Tom is a numismatist.

But the numismatist has none of those aids which the geologist derives from the order of superposition, and the mineral characters of the rocks in which his fossils are preserved; and, in the case of uninscribed coins, has nothing but the type and its geographical range on which to found any conclusion, unless, as in some rare instances it happens, the coins are associated with others of more certain date.

In comments to Hyperallergic, ancient historian and classical numismatist Liv Yarrow noted the absence of SPQR coins during the period of the Republic and its later use as a means of justifying autocracy while harkening back to an earlier age:

With seasoned numismatists eager to fill gaps in their collections, prices are already rising.