You do find that with most examples of this particular bottle, many of the canes in the base are not what you would expect from Perthshire. These odd canes are big, with large cogs and in garish colours, and they can at first glance be taken to be Murano. I think I have also seen the odd concentric paperweight that has similar canes. I would guess that this was a phase they went through and made these canes for this bottle and decided it wasnt quite their style!