(i-ii-iii) stamped with the artist's initials, inscribed and dated 'FONTES CM 92' at one end
(iv) stamped with the artist's initials, inscribed and dated 'FONTES CM 92' at either end

wood rulers with metal hinges, in 4 parts

each 200 x 1.6 cm (78 3/4 x 0 5/8 in.)

Executed in 1989-2008.