Campbell Center is now the only school in the United States devoted exclusively to education in historic preservation, conservation and restoration. Intensive workshops, one to ten days in length, have been held each summer since 1980. Many of the 12 workshops cover topics of general importance for all fields of conservation. Six are listed below. Deadline for registration is one month before each workshop.
Discounts are available.
The best material was not an acrylic but a polycarbonate. The readings obtained are given below. This span has yet to be established. They note that there is a new American product, not tested by them, which is said to have a good UV filter, to be nonstatic and have other good properties. Their son, James A. Barrow, is president of the company and two other sons, William A. Barrow and Bernard G. Barrow, are on the board of directors.