If the Wallpaper was formed glueless bubble and this place had to be cut, use a medical bag filled with glue (casein, PVA, etc.), it will help to inject it directly into the slot. Now there will be only press firmly exfoliated the area, removing excess glue with a soft cloth, allow to dry. Pear is easy to use and in the restoration of furniture.
Recommend to read
MYSTERY FOAM
The legend says, Aphrodite was born from sea foam. Of course, it's just a beautiful tale. But these days, many amazing things are born from the foam due to the marvelous chemistry. Foam...
BLOCKADE TRAM
From the devastation of the civil war Petrograd began to rise by the middle of 1920-ies. Respectively, began to grow and the population of the city, considerably departing from 1918 to...