Beschreibung

The drawing could be a copy after a similar ground plan in Montréal CCA DR1982:0020:018r, because some all of the (fewer) measurements in Stockholm are identical with those in the CCA drawing.

The drawing in the upper left corner seems to be a copy after Montréal CCA DR1982:0020:030r: Montréal contains the same measurements (and some more) and is more precise than the rather summary Stockholm drawing.

The drawing on the left lower corner seems to be a copy after Montréal CCA DR1982:0020:031r: Montréal contains the same measurements (and some more) and is more precise than the rather summary Stockholm drawing. The very few differences in numbers may be copy errors.