Numismatist But Not Notaphilist!

Almost all coin dealers stock banknotes as well, even if it is only as a sideline.

It is from this situation that some coin collectors are first introduced to banknote collecting. That was my experience.
Beside a few banknotes, I also have a few medals, tokens, major error coins, a 'dark' collection of fake coins, and 6x1 ounce Pt bullion coins as well, for the same reason, (but the Pt bullion came from a bullion dealer).
I feel compelled to say I have a reasonable numismatic reference library, that should really be considered to be part of the collection.

Together, the exonummia represents perhaps 10%-15% of my collection.

I will let others decide if I should be seen as a 'coin collector', or a 'numistmatist'.

I have other collecting hobby interests as well.

I don't collect banknotes. I have a small amount of them, but do not have any interest to expand the collection and do something else with them. Just let an album to be covered by dust....

i also stopped to collect some types of coins and thinking about further narrowing of the collection area. E.g. I stopped to buy modern coins for collection at all and expand this part only by swapping

These descriptive terms are inclusive, rather than exclusive - a "numismatist", for example, is someone with an interest in coins, and "coin-related objects", related either by use as money (tokens, banknotes, primitive money, etc) or by similarity in physical appearance (eg medals, seals) or by method of manufacture (eg. badges). Things that are "numismatic" but not actual coins or banknotes are often classified as "exonumia" (a term used here on the forum to describe things that aren't coins or banknotes).

Just like there is no one-word term to describe someone who only collects quarters, to the exclusion of all other coins, there is no single-word term for someone who collects coins, and only coins to the exclusion of all other numismatic objects. Using a phrase like "pure coin collector" sounds a bit elitist. Using just the phrase "coin collector" would be adequate when talking to the general public, as most folks don't even consider exonumia to be genuine collectables (I have seen non-numismatic folks joke about Chuck-E-Cheese tokens, as if everybody knows they are worthless objects unworthy of being collectable). To other collectors, you might need to qualify that by saying "just coins" or "only coins, not the other stuff".

That's some collection of notes you've got there hfjacinto, but to me notes are just good for changing into coins.

And to think there are people out there who don't care about either coins or paper money! Imagine!

Numismatics is the study of money and money substitutes. Notaphily, and exonumia are merely subcategories of the overall encompassing term "Numismatics" (Personally I would include Philately as a subcategory of Numismatics as well, as stamps are actually a money substitute as well.)

So depending on you level of study, you are still a numismatist. You merely restrict your study to one category.

Well, I just had a circular experience. I wondered where the word numismatics came from in the first place. "Matics" is easy. But "numis" isn't. "Numbers" suggested itself, or maybe the numeration of money as we all count ours. (Or not).
Wikipedia says "A numismatist is a specialist in numismatics, 'of coins'; from Late Latin numismatis, genative of numisma."
Wiki had nothing on numisma,
Dictionary.com doesn't have an entry for numisma, but it defines "numis" as an abbreviation for numismatics.
So, there you have it officially (or not).