I became involved in the De Ploeg Conservation Project through
contact with Marjan de Visser, a painting conservator based in Den Haag
who correlated with Groninger Museum for this extensive project. I am
currently studying for a BA (Hons) in Art Conservation at City and
Guilds of London Art School in the UK, and relished the opportunity to
be involved in part of this. It not only provided an insight into the
process of conserving such a large collection of paintings, but also
provided the opportunity to work in an overseas environment and immerse
myself in a new team.
The De Ploeg Conservation Project aimed to assess and conserve over
three hundred of the Groninger Museum’s collection of De Ploeg
paintings; a movement most prominent during the early 20
th
century. ‘De Ploeg’ consisted of Groningen-based artists whose works
were heavily influenced by the Expressionist, Constructivist and
Impressionist movements, and was driven by a desire to create more
opportunities to exhibit their work. Our team was brought in to
photograph, assess the condition, dry clean, apply cushioning to the
rebate of the frames, and apply new backings to the paintings to
stabilise slack canvases. Where necessary on more damaged and degraded
paintings, Marjan de Visser and her colleague Susan Smelt would
consolidate vulnerable paint layers, and fill and retouch losses.
before and after the foam-core backing was applied to the painting).
before backing was applied
after backing was applied
The team working on this project consisted of six conservators and
interns, fronted by Marjan de Visser, and painting conservator Susan
Smelt. The interns involved for these two weeks were Sjoukje van der
Laan and Marleen Wagenaar, both completing their Masters in the
Conservation of Modern Art at the University of Amsterdam, Celine de
Ruiter who is currently studying Restoration and Decoration at Cibap,
and myself. Our varying levels of experience were a positive component
of the project, as each one of us was able to suggest and implement
different ideas to aid the process. As the project will continue
throughout 2014 and 2015, this was particularly relevant at such an
early stage, as the method was still evolving.
De Ploeg Conservation Project Groningen, 1st September – 12th September 2014 Written by Anna Don
Marleen and Sjoukje re-fitting frames
Prior to the beginning of the project, a rating system of treatment
for each painting was established, allowing us to achieve continuity in
the work we were carrying out. The rating each painting was given,
either A, B, C or D, clearly outlined whether it needed excessive
conservation and restoration in a studio environment, or whether it was
in a stable enough condition that a general preventative conservation
treatment would suffice. While working on such a large collection, it
quickly became clear how important it was to create and maintain a
working system to make the best use of our studio and keep track of the
many paintings circulating the space, and what work had been done on
them. In many situations this opened up a good dialogue on the most
efficient way to treat the paintings, for example whether the panel
paintings required the same foam-core backings that were applied to
canvas paintings, to supply further protection, or whether this was a
superfluous addition.
Often, I found the most fascinating part of the project to be the
examination of the paintings. It was extremely gratifying to attempt to
understand the artists’ intentions and processes simply by looking. For
example, ascertaining whether the artist applied the ground themselves
or whether it was pre-prepared by a factory, and whether the frame was
original, re-used or new. Through thorough visual examination we were
sometimes able to identify certain materials, such as the presence of a
fugitive red lake pigment that had been preserved only underneath the
rebate of the frame, but had faded due to light exposure on all
uncovered areas.
Red lake pigment
One particularly interesting case involved a maroeffle substrate,
where a painted canvas had been adhered to a piece of wood that had not
been cut down to size. This led to an interesting conversation with
Marjan and Celine regarding the intention of the artist, regarding
whether he had chosen this substrate or if this had been a subsequent
decision later on. The discussion drew on evidence provided by the
method of painting and the current state of the canvas, which allowed us
to arrive at a theory.
A technique that is unique to the De Ploeg movement is the
experimentation of wax with oil paint, providing a more matt, level
finish, without the definitive brush strokes of oil paint. Often, what
appeared to be wax paint would be later discovered to be purely oil used
in a particular way, or vice versa, which added an intrigue to the
technique, and our way of identifying it. As this raised questions that
were unable to be immediately answered, it provided a good discussion
among our team.
This project provided me with an excellent basis into further work in
paintings conservation, through examination, techniques and materials.
Although I was only part of it for two weeks, the project was already
gaining momentum. This was highlighted by the interest of newspaper
Dagblad van het Noorden, who published an article on the work being
undertaken. The collection itself is an incredible selection of
paintings to be able to understand and work on so closely, and I was
thrilled to have the opportunity to be part of this project.
Anna Don