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PHOTO / NEGATIVE ENVELOPE, 4"x5", Buffered, Box of 100

These envelopes are buffered with 3% calcium carbonate to help counteract migrant acidity. Perfect for storing nitrate and acetate negatives and newspaper clippings. Cellulose fibres such as cotton, flax, linen and jute, as well plant-based specimens, can be stored in buffered material.

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