Although, at the time this microscope was manufactured, the designation of the name "Royal" to describe this model was not yet in use, this microscope has all the features that were later incorporated in the Royal model. This instrument could also be considered an example of the Edinburgh D model having the addition of a double draw-tube with the lower tube having a rack and pinion adjustment. This particular instrument came furnished with both binocular and monocular tubes.

The Watson Van Heurck type instruments with the continental base are far less common than those with the English tripod base. On the right is an illustration of a later example of the Royal model with the English base.