A person who collects shells is known as a conchologist.
A numismatist is someone who collects coins and/or medals a numismatist
Yes, there are as well as people who collect other types of cartridges. Both the loaded type of shotgun ammunition and the empty 'hull' of a shotgun shell. If it exists, there is probably someone who collects it.
a person who studies and collects mollusc shells as a profession or hobby paula
hoarder!
Memorabilian.
someone who collects umbrellas
A catapultist.
Someone who collects beer bottles.
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dumb
An arctophile is someone who collects teddy bears.
Numismatist