AN EXAMPLE OF FAULTY PAINTING TECHNIQUE
Unknown Dutch Artist (possibly mid-19th century)
Portrait of a Man
oil on canvas
Previous condition: This small picture
of a drunken toper was marred by surface dirt
and discoloured varnish. Extensive drying
cracks had also been retouched in a previous
restoration. These cracks had been formed after
the painting had been completed by the artist.
They were formed by the excessive use of a
varnish medium that was added to the paint.
This faulty technique was much used by artists
wishing to emulate the “golden glow”of old,
discoloured masterworks of an earlier period.
This picture was previously thought to be a
Dutch picture of the 1600s, but the extensive
presence of drying cracks suggests that it is by
an artist of over a century later trying to pass it
off as a 17th-century original.
Current treatment: The surface dirt,
varnish and extensive retouchings were
removed separately. It was observed that the
original paint layer had been badly abraded in
previous cleanings. An isolating layer of varnish
was then applied with a brush prior to the
application of new reversible retouchings.
Once this was complete, a final varnish was
applied. The frame ornamentation in many
areas had been lost. These were replaced by
making casts of surviving ornaments in plaster.
These were then adhered in position and
coloured to match the existing ones. To
cushion the picture in the frame, velvet ribbon
was applied to the rebate and the painting
secured in position with flexible brass plates.
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Painting before treatment: also note
some of the damage to the frame.

Front of painting during cleaning,
with previous retouching removed.
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