In an article in the Optical Journal Edward Bull writes regarding the first spectacles offered here: "The usual form of spectacles of that date had large round eyes .... In the accompanying illustration the first spectacle is of a very curious construction. The two lenses are separated by a piece of tortoiseshell. This doubtless was intended to overcome the annoyance of seeing an object doubled, which was the great imperfection in the old split lenses. These old spectacles were pieced up in a Paris shop, together with their bright red leather case. It was the case that first attracted my attention, for it bore the name of a house very famous in the early years of spectacle making in Paris..."