Humph, why can't I get easy questions?
Not sure about this - it does look similar in style, but the pattern is not one that features on the promo card. Could another company have produced these, I wonder? I'll ask Tony Cartwright to see if he remembers any variations in these weights, but the blanks were made by Chance and there is no record of the moulds changing shape.
With regard to the pattern, as they were hand-cut then different variations would occur, unless the pattern is quite dissimilar.
Would welcome a photo for the next book though Paul...