Hi, Curtis;
 
First off, good for you for getting these issues worked out before any
accessioning takes place.  The best solution is to define a standardized
system, prepare a written guide to how the system works, then use it
consistently.  Beyond that, the nuts and bolts of how it all works is
really a matter of preference.
 
Our system is a real jumble--started off in the 1940s with two part
accession numbers (ie., 48.1--year and object within that year).  Bumped
up to three part in the 1950s, with a regression to two-part in the
early 1960s (we've pretty much standardized all that since by just
adding a .1 onto the end of all the two-part numbers).  From the start,
we used letters to indicate pieces of a set--that was changed
(partially) in the 1990s, when our collections manager at the time
changed all the letters to numbers, as a fourth number (so, 72.38.1A
became 72.38.1.1)  Unfortunately, she only changed the number in the
database--not in the accession ledger (which, actually, she wasn't
keeping) not in the paper records, not on the artefact itself.  This has
created enormous confusion among our collections volunteers, who each
have to be trained that, yes, 72.38.1A is the same thing as 72.38.1.1. 
Problem is that she accessioned all her new accessions by the same
numbering system--so, while I've reverted back to 'As' and 'Bs' on the
older accessions, the ones from her time still have the fourth, and
sometimes fifth, number on them (the fifth comes up with, say, a tea pot
that's part of a set, and the set part of a larger donation--we end up
with a number like 2002.21.106.4.2--year, lot, object (the tea set),
part of the object (the pot), secondary part of the object (lid).  So,
straight number systems can get pretty long, too.
 
The only change we've had since then is to go to a four digit year
code, starting in 2000.
 
For your board game example, the one with 65 parts labeled with
letters, you don't have to end up with a-ccc; instead of repeating the
letters, make your second round all starting with "A", then run through
the alphabet again, behind "A" (ie., your 30th piece would be
2009.1.1AD).  If  you go through the alphabet again, start your next
series with 'B' (so, the 53rd item would be 2009.1.1BA).
 
 
Really, any system that assigns a unique alpha/numeric code to your
individual objects will work.  Consistency is the key to making a system
that will make sense to the people that have to use it.
 
Cheers,
 
 
 
------------------------------------------------------------
Tim McShane, Assistant--Cultural History
Esplanade Museum
401 First Street SE
Medicine Hat, AB   T1A 8W2
Tel: (403) 502-8587
[log in to unmask] 


>>> "Bateman, Curtis" <[log in to unmask]> 6/16/2009 2:30 PM >>>

Hello (and please excuse the length of this email),
 
I*m calling on all those with strong opinions in regards to object
numbering methods.  My colleagues and I in DC have often debated this
issue and it never ceases to amaze us how extreme our views can get over
such a simple question.  And so I now pose the question all of you: When
numbering an object that has multiple/related parts, is it best to give
each object its own unique number or would you group the objects under
one number and then delineate the parts with letters?  For example, you
have a Tea Set with 6 cups.  Would you, A.) number each cup individually
- 2009.1.1, 2009.1.2, etc., or B.) give each cup the same number but
with a letter at the end * 2009.1.1a, 2009.1.1b, etc.?
 
While this seems like a simple question, it is one that goes to the
very heart of proper collections management.  Every single piece of
literature out there will advise you to never, ever incorporate a letter
in your number.  Their reasoning: each object has its own history so why
give it the same number as something else? A tea cup is not the same as
the box it came in; they*re made from different mediums, have different
condit
ions, different uses, etc. So why give them the same number? 
Also, the inclusion of letters with numbers might be lead to confusion. 
Consider a Board Game that has 65 parts.  Since there are only 26
letters in the alphabet, the first 26 parts would be a-z, then aa-zz,
then aaa-ccc.  The object as a whole would be labeled as *2009.1.1a-ccc.*
This can get very confusing and cumbersome in regards to space. 
Proponents of strictly-numbers also mention computer databases, which
naturally prefer a catalog system based upon numbers only. If an object
has related parts, this can be noted in the object*s physical file as
well as its database file.
 
On the flip side, proponents of using letters will tell you that the
presence of a letter automatically ties the object with a related
object.  Teacup A by its very nature is related to Teacup B and so on. 
In the unfortunately scenario whereby you lose your records, the
presence of a letter at the end of a number will keep that relationship
intact whereas the strictly-numbers approach would not convey that
relationship.  Take the Board Game example above, using the
strictly-numbers approach you would label the object as *2009.1.1-65.*
This appears simpler but what happens if you misplace 1 piece of that
game, say object *2009.1.45,* only to find it elsewhere in storage? You
would have no idea where it goes, or if its part of a game or anything. 
It would become even more confusing if the person who donated the game
also donated 50 other objects.  The first 25 objects accessioned could
each be one object with no related parts (1-25), but object 26 might be
the first piece of the Board Game.  In that case, object 45 doesn*t tell
you anything! You*d have to look up the number in your catalog, and if
you lose your records then the object*s identification becomes a
complete guessing game.  Whereas if the object was *2009.1.26f,* you
automatically know that it is 6th object accessioned of the group
beginning with 26a. You wouldn*t have to consult your records, you*d
just find the Board Game *2009.1.26a* and put the piece back.  Those in
favor of letters state that *The object ID should tell you as much as it
can about the object without having to consult your records.* For
example, 2009.1.1a informs you the object was accessioned in 2009, it
was the first accession of that year, it was the first object in that
accession, and that object has a related part, presumably 2009.1.1b and
possibly more.
 
I am sure most of you here, although not all, are part of a museum in
which the numbering system was already in place when you arrived, in
which case a complete overhaul might be deemed unnecessary.  In my case
however, our museum has just been created and the accessioning process
has yet to begin.  I have the opportunity to create a proper, organized
and sensible numbering system from the ground floor.  If you were in my
shoes what would you suggest for objects with multiple/relate parts:
strictly numbers or numbers with letter delineation?
 
For those of you who read through this entire email, Thank You! I look
forward to your responses! 
 
Curtis Bateman
IBEWMuseum
(202) 728-7691
 
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