Cleaning out the garage

Question

_{This puzzle is part of the Monthly Topic Challenge #12: mobile-friendly puzzles.}

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I really need to clean out my garage - it's so full, it often feels like it contains one of everything. Today when I opened it up it contained:

A pleasant smell,
(A postcard from) a German town on the White Elster river,
A bird of prey,
An implement for shaving,
The text from the back of a book,
A lemur,
(A trading card depicting) a Montreal Canadiens player,
A tough, elastic, synthetic polymer,
A children’s magazine,
An Australian freshwater crayfish,
A Celtic priest,
A tranquiliser,
(A small replica of) an Australian landmark,
A price tag,
Grilled bread,
An accumulation of fabric fibres,
A woman whose spouse has died,
(A piece of music by) a Norwegian composer,
(A postcard from) an Italian commune in the Province of Ancona,
A pair of glasses,
A small, benign growth,
(A postcard from) a village in the Jihlava District of Czechia,
Bootleg alcohol,
A device for converting digital information into analogue signals,
A Russian coin...

There was another coin as well, but the motion of the door opening caused it to roll away.

Can you help me remember what it was?

Answer 1

My answer is:

QEPIQ A coin worth 1/100 of a manat in Azerbaijan

Please see vocabulary.com
and Origins of World Currency Names

These are 25 five-letter words with the same first and last letter.
The unused letter must be the answer.

AROMA A pleasant smell,
ZEITZ (A postcard from) a German town on the White Elster river,
EAGLE A bird of prey,
RAZOR An implement for shaving,
BLURB The text from the back of a book,
INDRI A lemur,
JURAJ (A trading card depicting) a Montreal Canadiens player,
NYLON A tough, elastic, synthetic polymer,
COMIC A children’s magazine,
YABBY An Australian freshwater crayfish,
DRUID A Celtic priest,
XANAX A tranquiliser,
ULURU (A small replica of) an Australian landmark,
LABEL A price tag,
TOAST Grilled bread,
FLUFF An accumulation of fabric fibres,
WIDOW A woman whose spouse has died,
GRIEG (A piece of music by) a Norwegian composer,
OSIMO (A postcard from) an Italian commune in the Province of Ancona,
SPECS A pair of glasses,
POLYP A small, benign growth,
VANOV (A postcard from) a village in the Jihlava District of Czechia,
HOOCH Bootleg alcohol,
MODEM A device for converting digital information into analogue signals,
KOPEK A Russian coin...

So the unused letter is Q

Postscript following Stiv's comment:

The initial (and last) letters of the first eight answers spells

AZERBIJN

Of course the repeated letters are dropped as the answers contain only one of each.