On Mar 26, 2011, at 11:58 AM, Alan Merryweather wrote:
> Not pleased to find that the trouble I went to to weigh and measure the book 
> and add the information - (which I subsequently saw on screen after it was 
> added) - has now disappeared apart from a sole 1.

I can't tell you why it disappeared, but I can tell you how to find what it was.

You need to look into the history, to see previous values in the records.  The 
deceptive part is that there is a history for both the work level and the 
edition level, even if there is only one edition for the work, as in this case.

Since the display attempts to give a combined view when there is only one 
edition for the work, it can be confusing to figure out whether you are looking 
at the work display or the edition display.  Two hints:

1) if it says "TITLE  (1 edition)" at the top, you are seeing the work page.  
If it says "1 edition of TITLE", you are seeing the edition page.

2) if the URL ends in OLnnnnnW, you are seeing the work.  If the URL ends in 
OLnnnnnM, you are seeing the edition.

To find past values of edition-level fields, like weight, you need to inspect 
the history on the edition page, not the work page.  Use either the history 
list at the bottom of the page, or the history link at the top right.

In this case, I found the old value in version 4 of the edition record:

http://openlibrary.org/books/OL16629523M/Berlioz?v=4

and

http://openlibrary.org/books/OL16629523M/Berlioz?b=5&a=4&_compare=Compare&m=diff

That shows the old value of

1lb 10oz pounds

for the book

- Alan

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