3) with Woods Light and microscope for the examination of restored areas 4) with IR-Reflectography for the examination of the deepest painting layers 5) with microscope, Woods Light and reflectography in order to verify the material uniformity and the ageing of the signature 6) with IR-Spectroscopy for establishing the pigments used and examining the drying of the paint binder attempt to determine the authenticity of a painting must begin with tests and analyses to establish whether the age of the painting and the materials and techniques used are compatible with the presumed date of execution.
The Museum laboratorys mission is to improve existing scientific methods and elaborate new methods for the ascertainment of the authenticity of art objects.
Whether you have inherited an old sewing machine or picked one up at the local thrift shop, you may be curious about its value.
Antique Singer sewing machine values are determined by many different factors, including the condition of the machine and the desirability of the model.
If you want to learn more about our consignment sales program, please read the as well.
There are different approaches for determining the authenticity of antique paintings: - verifying authenticity through a purely stylistic evaluation - verifying the authenticity of a painting by means of objective tests of the ageing of the material - verifying the authenticity of a painting with the use of scientific instrumental methods.
The combined results of the stylistic, material and scientific investigations will permit the establishing of the compatibility of the painting with presumed elements or its inauthenticity.
First, know that a sewing machine is considered an antique if it was crafted more than 100 years ago.
Newer machines are considered vintage, but they can still be extremely valuable on the collectibles market.