Speciaal blok om de verschillende papierkwaliteiten te beoordelen. De bloks bevatten 12 vel:
200 grs. mould made mat
200 grs. mould made ruw
230 grs. mould made extra ruw
200 grs. albrecht durer mat
250 grs. burgund mat
275 grs. Torchon
300 grs. merten spiess
300 grs. william turner
300 grs. britannia ruw
450 grs. tiepolo
450 grs. cornwall
600 grs. leonardo
