Mk2 Wipers

Where do you get replacement wipers from? Mine aren't the type which clip over the top of the arm like all the repco's of the world sell, they have a knob which the wiper fits onto? Pardon the pun!
Carrying on from \"The Works Escorts\" forums of years past, RS Motorsport is dedicated to those small Fords from the Golden Era of Motorsport, namely the 60's, 70's and 80's.
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