WPI-g-000407150–350 g/m²Virgin pulp44% confidence
Album Portrait.
Stationery paper grade. Permanent ID WPI-g-000407 — verified, source-traced, free.
GSM 135
135g/m²
lighter
GSM 150 · this
150g/m²
WPI-g-000407 · standard
GSM 180
180g/m²
heavier
01
Canonical specification
Basis weight
150–350g/m²
Fiber source
Virgin pulp
stationery
Paper type
stationery
Confidence
44%
source: wpi
WPI ID
WPI-g-000407
Slug
album-portrait
Last updated
2026-04-18
GSM range
150–350g/m²
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