I recently acquired a number of these coiled case cartridges. I don’t know much about them since this is not one of my collecting specialties. I have tentatively identified them, in order, as 577 Snyder, 577/450 Martini Henry, and 500 3 inch Black Powder Express.
I am getting ready to catalog them into my inventory and would like to know where they were manufactured, in which time frame they were used, and some idea as to their value for my records. Any miscellaneous history would be much appreciated.