SOTW (Stamps of the world) have a new policy Chris,
of including Minisheets, I shall give them the benefit of the doubt
with these Russian, as perhaps they were in the middle of cataloguing.

My 2005 does have some Minisheets listed, but not all,
some countries have listings of all stamps to 1996 which is a real puzzler.





SOTW is Newspeak for "Simplified" which AFAIK has never included
miniature sheets -- you have to go to the more specialised cats for
these, although sometimes you can work out what they are by gaps in
the sequence.

I seem to remember reading that SG numbers can differ
between FOTW and P{art I, II etc... Can anyone confirm?

Also, numbers can change from year to year.

Blair

The most common changes are between the numbers given with new issue
announcements in Gibbons Stamp Monthly, and when they finally appear
in catalogues, having found some intervening issues.

They do change earlier ones, but only rarely -- it must cause them
major headaches if someone orders from an old cat. Each edition of the
specialised cats ("Parts", now single-country) has a section on number
changes and deletions of stamps that they decide never really existed.

But having said "rarely" I do vaguely remember having been annoyed by
some major renumberings just after writing numbers into my album :-(

Chris