Should it present a deep blue or black appearance it is Solarized or over-timed.
"American Handbook of the Daguerrotype"
Samuel D. Humphrey
The Solarized portions also are very seldom blue, especially after gilding.
"American Handbook of the Daguerrotype"
Samuel D. Humphrey
To Redeem, a Solarized Impression.
"American Handbook of the Daguerrotype"
Samuel D. Humphrey