1) "...(Longbranch only made the latter.) ..." thats not quite right , they started off making no4 mkI rifles but quickly changed to the expedient mkI* as did savage in the US ,
2) the SMLE was the original designation of the no1 rifles pre-20s , the no4 rifle is an evolution of these but significantly changed to earn its own designation , closest thing you will find is a no1 mkV
3) IMHO the american made rifles are every bit as fine as the british made , and i own both , i will allow that the bolt release has proven a weak point over the years , but we are taking many years , the matching numbers is important as the commonwealth did not consider these bits interchangeable , they were mated for life
4) its worth doing research before "investing" in the future , know what you are looking at before you buy ,
the two in the middle are longbranch , the outside ones are FAZ in this photo .....
https://www.milsurps.com/images/impo...3874fcd8-1.jpg
these are SMLEs .......
https://www.milsurps.com/images/impo...73201611-1.jpg