I don't have throatless ones but I have the 200 model from Cromwell,got an extra discount on them as well so seriously good value I think.
https://www.cromwell.co.uk/shop/hand-tools/bench-shears/atlas-bench-shears/f/3642?query=
Chances of finding an old Beverly/top quality throatless shear are slim to none, i hunted for ages before giving in to a new cheapnese copy and am still looking for a genuine Beverly B2So if I cant get hold of an old pair for reasonable money, then a cheap set and some fettling will probably suffice in the thinner stuff....
I too have often had Beverly b3 stuffed in the search bar but to say they are like RHS is an understatement.
They are not bar croppers as often confused with they are a precise sheet cutting sheer and as said above curves and intricate small notches can be done on throat less sheers
If your feeling flush get a b3 ordered
https://www.google.co.uk/url?sa=t&source=web&cd=2&ved=0ahUKEwi6zqDqraHUAhVLK8AKHUHFBIAQFggMMAE&url=http://beverlyshearmfg.com/products/beverly-shear-b3&usg=AFQjCNEcT7CZhcic9zlcbj1XubEXve851Q
I'd like to say they are worth it but I've never been lucky enough to see one in the flesh let alone play with one.Crickey that's expensive.
I've often looked at those Bailey mps1's for a meer 215 notes and wondered if they are any better then the others that are 50-70 quid cheaper.The ratcheting style like https://www.google.co.uk/search?q=sheet+metal+ratchet+cutter aren't throatless so the frame is more likely to get in the way when cutting say an inside radius. AFAIK they're all sold as having a 1.5mm / 16swg mild steel capacity and all of 'em have serrated cutters (for grip) that leave 'teeth' marks behind?
Baileigh (and no doubt a few others) do a throatless shear that uses circular blades, also looks like they now have copies of the larger Beverly shears too http://www.baileighindustrial.co.uk/metalworking/sheet-metal-shears/manual No idea how cheapnese any of them are and whether they're better quality or just have a 'expensive paint job' though...