Flask, Calibration
Production date
Circa 1960s
Description
A tubular plastic calibration flask with a removable black rubber base with a hole at the center. The flask has a scale from 1 -45 printed on paper and marked on one side of it.
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Object detail
Production date
Circa 1960s
Production place
Subject person
Classification
Credit line
This
calibration
flask
was
used
by
prolific
Okato
inventor
Charles
W
(Charley)
Maxwell.
Maxwell
used
it
to
help
test
his
milk
meter
prototype
that
he
designed
during
the
1960s.
Accession number
PA2011.118
Collection type
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