Hi, the guns your looking at are BLE's made in Birmingham for H&H. H&H BLE's were made by either S. Wright & Son or A.A. Brown and later by Webley & Scott (these appear to be Scott made guns, no fancy backs and also have just the H&H mark and not Holland & Holland on the action). The shot and regulated means that H&H would do the choke work and regulate the patterning at their shooting grounds before finishing (blackening the bbls) the guns at their shop. So while these guns are marketed by and marked H&H they were not made by H&H in London.
H&H also marketed a fancier/higher finished model the Cavalier and the Northwoods (more plain than the Cavaliers)
BTW, what "numbers" are you referring too?
Best!
Greg
