Nail chronology as an aid to dating old buildings

Tin-enameled glaze wares are known by different names generally depending on their country of origin.

Material produced in France and Italy is known as faience, material from Spain is labeled majolica, and objects from England and Holland are referred to as delft.

The vitrification process involves the temperature and conditions under which the particles of clay fuse.

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It was produced at many places throughout the state and region and was often the object of cottage industry.

One important manufacturer was located in Galena, Illinois.

The common procedure for identifying earthenwares is by touching the tongue to the paste.

If the surface feels sticky, then it is earthenware.

These changes sometimes left temporally sensitive indications at the level of the artifact.

The reader must appreciate that as one comes closer to the present the diversity of artifact types increases geometrically.It is typically recovered in the form of small, thick chunks.Surface treatments centered on lead glazes, both clear and colored.The level of heterogeneity reflects the social and economic differentiation of the time period.The discussion will be limited to three artifact categories: ceramics, glass, and structural materials.The purpose of this guide is to provide a general introduction to some of the historic artifacts recovered from archaeological sites in the Upper Sangamon Basin of east-central Illinois.

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