Anchor chain pawls - source of supply

[airborne1]

I am replacing my rust destroyed stem head anchor chain roller.
I have found a source for a new roller (Davey @Co - no commercial interest) but it does not have a flip over chain pawl to stop the chain from running through.
Does anyone know where I could get one??

Thanks

 

[FWB]

There is a pawl only here about 3/4 down the page £29.99

 

[Poignard]

Instead of paying £29.99, I have one of these, absolutely unused that you could have for £20.oo plus P+P