The materials intended to establish the degree of excellence
are herein included and deemed to be of satisfactory quality for installation
within the Town. When new materials may be made available, their use
may be permitted in limited test sections with the restriction that,
should these materials prove unsatisfactory through the test period
as established by the Town, they shall be removed and replaced with
those herein called for at no expense to the Town.
Monuments shall be constructed as shown in Appendix L.