UPDATE:
Spoke to my contact today, what he reckons is the equivalent of the USA horn is coming in on the 30th March in a batch of 38. 35 are already accounted for, so I've bagged one for myself. If it's the right one, I'll let you all know, and start the list proper for a bulk order. That order could take upto 6 weeks to come through again
so unless someone else knows a better way of getting them, or someone has stock of them now, it's the only way we're going to get them.
Next update when I get mine in April.
