Well - it obviously is not the identical weight: Ian's is marked CIIG, and the one in Andy's book is not.
I also agree that both weights are likely different in size (assuming the cane is the same size). I disagree, however, to
... Also, the coloured ground is clearly larger in Ian's weight and with a different pattern of white "webbing".
How the size of the coloured ground shows up in images of this type of weight will strongly depend on the angle of aperture of the image, i.e. from which distance it was taken. As we don't have this information on either image, there is insufficient information to support such a statement.
I also feel the webbing is pretty similar, especially if we talk about at least one of them being a design trial.
In other words - what I meant (and hopefully most readers will have understood correctly): both weights could well be the same type of "Flower in the Rain" design.