Dating walker hall silver plate
In the states it is most often referred to as --fine silver--.At 98 or 99 percent it is considered about as pure as one can get.
Places like Egypt still today only use 830 silver I would just like to correct one point.
Its hotter melting temp is one of the reasons that enamellists often use it here in the states.
Due to its lesser copper content it tends NOT to tarnish as much or a quickly.
Otherwise, you're correct about the remaining hallmarks.
This time I have from my collection a wonderful sterling narrow twisted bracelet.