Vintage Box Seal MT5 Dry Mounting Tissue box of 100 sheets 5x7

Description

Vintage Box Seal MT5 Dry Mounting Tissue box of 100 sheets 5x7. Box has been opened, but all 100 sheets appear to be included. Box has some stains on the back (see photo).
My uncle had a darkroom in his house from the mid 1960s until the early 1980s. After that, hoarding took over the room was turned into storage. He routinely bought excessive photography and darkroom equipment and stored it in this room unopened.
Now we’re cleaning out the room and selling off the material, equipment and film.
In addition to this vintage box, there are three other non-vintage boxes, unopened but otherwise identical. Inquire about purchasing all of them.