Mike, That is a very nice collection of badges you have. I wonder if you have any information on the w/m HMP badge within the wreath it isn't UK but colonial to the best of my knowledge. As for the Edward VII badge they are fairly common to come across there is a female version in brass and w/m which the only examples I've ever seen were in the Galleries of Justice Museum, Nottingham. Finally the Prison Inspectors Tipstaff as you quite rightly pointed out was sold at auction in the West Midlands, UK for about £300 pounds to a dealer who subsequently sold it shortly after for £1000.00 not a bad profit.