A well known Birmingham maker {W&S} made quite few blocks for Dickson's in the 70's to my certain knowledge.Engrave "Specially Made for John Dickson " as previously mentioned. This was because of the Trade Description Act that had come in to force which meant that no one could claim that they had made somthing without doing 50%[?} of the total work .Guns prior to that were just marked John Dickson . They were if I recall correctly filed up to give the impression of a round action and had a scalloped back ,but I will stand correcting on that point.I have seen numerous box locks of standard pattern bearing the Dickson name as well as H& H style side locks.