<s>
An	O
auction	B-Library
catalog	I-Library
(	O
US	O
spelling	O
)	O
or	O
auction	B-Library
catalogue	I-Library
(	O
British	O
spelling	O
)	O
is	O
inventory	O
of	O
listing	O
of	O
items	O
to	O
be	O
sold	O
at	O
an	O
auction	O
.	O
</s>
<s>
Auction	B-Library
catalogs	I-Library
for	O
rare	O
and	O
expensive	O
items	O
,	O
such	O
as	O
art	O
,	O
books	O
,	O
jewelry	O
,	O
postage	O
stamps	O
,	O
furniture	O
,	O
wine	O
,	O
cars	O
,	O
posters	O
,	O
published	O
for	O
sales	O
around	O
the	O
world	O
,	O
can	O
be	O
of	O
interest	O
in	O
themselves--they	O
will	O
can	O
include	O
detailed	O
descriptions	O
of	O
the	O
items	O
,	O
their	O
provenance	O
,	O
historical	O
significance	O
,	O
photographs	O
,	O
and	O
even	O
comparative	O
analyses	O
and	O
descriptive	O
essays	O
by	O
subject	O
experts	O
.	O
</s>
<s>
In	O
some	O
cases	O
,	O
auction	B-Library
catalogues	I-Library
are	O
key	O
documentation	O
for	O
rare	O
objects	O
that	O
are	O
in	O
private	O
collections	O
,	O
and	O
make	O
up	O
an	O
important	O
part	O
of	O
the	O
libraries	O
for	O
students	O
of	O
material	O
culture	O
,	O
appraisers	O
,	O
museums	O
,	O
and	O
dealers	O
.	O
</s>
<s>
As	O
a	O
combined	O
information	O
source	O
and	O
"	O
sales	O
brochure	O
"	O
,	O
an	O
auction	B-Library
catalog	I-Library
must	O
tread	O
a	O
fine	O
line	O
between	O
accuracy	O
and	O
promotion	O
.	O
</s>
<s>
Auction	B-Library
catalogs	I-Library
may	O
be	O
sent	O
to	O
favored	O
customers	O
without	O
charge	O
,	O
but	O
catalogs	O
may	O
be	O
charged	O
for	O
,	O
sometimes	O
as	O
much	O
or	O
more	O
than	O
other	O
kinds	O
of	O
book	O
.	O
</s>
<s>
Some	O
time	O
after	O
the	O
auction	O
is	O
concluded	O
,	O
recipients	O
of	O
the	O
auction	B-Library
catalogs	I-Library
may	O
receive	O
a	O
"	O
prices	O
realized	O
"	O
document	O
,	O
a	O
bare	O
listing	O
of	O
the	O
lot	O
numbers	O
and	O
the	O
prices	O
for	O
which	O
each	O
was	O
sold	O
.	O
</s>
<s>
The	O
actual	O
physical	O
auction	B-Library
catalog	I-Library
is	O
limited	O
to	O
print	O
runs	O
which	O
started	O
in	O
2005	O
when	O
the	O
major	O
auction	O
houses	O
created	O
their	O
own	O
app	O
.	O
</s>
<s>
In	O
2018	O
it	O
is	O
rare	O
that	O
you	O
can	O
purchase	O
the	O
physical	O
auction	B-Library
catalog	I-Library
.	O
</s>
