Stretching canvas

I would like to inquire whether anyone may have done any research or
could share any information on the dates of introduction and
adoption for specific technologies relating to stretching
canvas--specifically:

    The use of the staple gun instead of tacks or nails for
    fastening stretched canvas to stretchers; and

    The introduction of stretcher bars with mitered (diagonal)
    mortise and tenon joints (as are now typical), rather than
    horizontal joints, in different areas of the world. For a
    precise characterization, see "Full mitered bridle joint with
    keys, Buck type 4a" in the PSG Stretchers and Strainers Chapter
    by Barbara Buckley on the AIC website at

    <URL:http://www.conservation-wiki.com/index.php?
        title=PSG_Stretchers_and
        _Strainers_-_III._Materials_and_Equipment>

    **** Moderator's comments: The above URL has been wrapped for
    email. There should be no newline.

The development of types 34 and 35 would also be of interest.

As things are introduced, and come slowly into common use, I would
be very interested / grateful for any one who would care to
send known, dated examples of occurrences of these technical
details.

Preferred would be emails with JPEG images and brief text references
with basic information--collection, title, artist, date, school,
measurements, for example--and a short explanation of why it is
known that the stretcher is original or how it is datable.

If I can collect enough good examples, I would hope to publish the
information so as to have a useful, datable historical resource for
paintings technology. Examples from the 19th century to ca. 1950
would therefore be the point of focus.

Jilleen Nadolny
Art Access and Research, London


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                  Conservation DistList Instance 25:29
                 Distributed: Sunday, December 18, 2011
                       Message Id: cdl-25-29-017
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