on Apr 15, 2016
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Known Information
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GROUPING OF LATE 19th CENTURY
objective 'swing' mounts including one marked late 19th Century
Also there are EIGHT (8) wooden late 19th Century slide preparation
mounts, and a late 19th Century wheel stop condenser and a
The condenser itself measures 39 cm or 1.5 inches across and is 13 cm
The condenser aperture wheel itself is precisely 45 cm in
diameter or 1 3/4" in diameter
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