These are rare in the USAicon without a doubt. The majority were converted into different configurations or chewed up in WWI. Collectors have imported a few from NZ and Australiaicon (i.e. Queensland Police examples). I’ve seen a few in many years of collecting L.E.s.
In the past year or so one sold on GB for $3K+. Irish guns are not hard to find, though condition usually isn’t the best.