Buyer beware!...One of these is listed on e bay as made in India and is £54.99 plus shipping...The other is listed as made in the England and retails at £89.95 plus postage...
Look closely at the manufacturing detail on the end of the driving pins...and the grey primer under the black paint...I would suggest they originate from the same source...
The sprockets that are 'made in england' are made in Coventry, have that stamped inside them, are CNC machined from solid and then chemically blacked...not painted...I've sold a few and they are a cracking piece of work...