Then again, Wikipedia says there were processes such
as Calotype introduced in 1841, so maybe so... It would be interesting to specify what type of process was used.
Two gallery shows, a museum exhibit and a conference are shining a spotlight on preindustrial image - making methods such
as daguerreotypes, tintypes,
calotypes, salted - paper prints and more — experimental processes that were often difficult to manage and unpredictable in their results.