exceptions and to extend them to other classes of works. For all
these classes the term of protection shall not be less than twenty-
five years from the date of first publication.

(b) Any Contracting State which, upon the effective date of
this Convention in that State, does not compute the term of
protection upon the basis of the life of the author, shall be entitled
to compute the term of protection from the date of the first
publication of the work or from its registration prior to publication,
as the case may be, provided the term of protection shall not be less
than twenty-five years from the date of first publication or from its
registration prior to publication, as the case may be.

(c) If the legislation of a Contracting State grants two or
more successive terms of protection, the duration of the first term
shall not be less than one of the minimum periods specified in
subparagraphs (a) and (b).

3. The provisions of paragraph 2 shall not apply to
photographic works or to works of applied art; provided, however,
that the term of protection in those Contracting States which protect
photographic works, or works of applied art in so far as they are
protected as artistic works, shall not be less than ten years for each of
said classes of works.

4. (a) No Contracting State shall be obliged to grant
protection to a work for a period longer than that fixed for the
class of works to which the work in question belongs, in the case
of unpublished works by the law of the Contracting State of
which the author is a national, and in the case of published