Hi all,

I've got a cataloging question.

I've found some copy cataloging that I plan on changing locally.  This is an exact record, so I'm not altering something similar.  The record describes 1 map both sides, and includes one 034 and one 255 field.  But further examination shows that the "1 map both sides" has 2 different scales.  Not even close.  Thus I'd prefer to describe these as 2 maps both sides etc. even though the 2 are north south extentions of each other, they both have the same titles within the neat line, as well as the same cover title.  Is my thinking correct, to describe these as 2 maps both sides, solely because of the differing scales, and in spite of the other similarities?  That's my 1st question.
Secondly, the original record included the latitude longitude coordinates in the 034 and 255, but there is no Latitude longitude info. on the map anywhere.  Zero, nichts, nada.  I have no idea where these coordinates came from, and without doing the math myself, have no idea of its accuracy.  Should I do the math and extrapolate the latitude longitude for both sides myself, inserting the additional fields?  Is it safe to distrust the original cataloging to a certain degree because of the different scales, and thus assume the latitude longitude may be incorrect also?  What is the general consensus about catalogers inserting latitude longitude when the item itself does not show such data at all?

Thanks,
Rick Grapes
BYU Map Collection