The concept of dating pieces from the mark is one that does not work well for
silverplate. Some kinds of sterling can be dated by the marks, but not all
sterling. Same for silverplate. There is some than can be nailed down to a time
period from the marks, but most can not.
This is because there are all sorts of things the mark can represent. It can be
the mark of the maker. Or of the retailer. Or of a specific design line. Or of
the wholesaler. Or of a selling plan like parties. Or it can indicate how the
item was sold.
What we can do is look at the piece and figure out a style. From the style we
can work out a time period. Frequently these periods are very long: Colonial
Revival type designs have been around since the 1890's.
Generally, cocktail shakers date from 1920 into the late 1960's. There are
styles and sizes that let us pin down a time. But there is always the caveat:
the time we are most certain of is when it began being made. We really don't
know when, or even if, production ceased.
The simple classically tailored punch bowl with ladle has been produced from
the 1850's down into the present. Many of these are commercial items made for
caterers, restaurants and clubs. Again, a view of the piece can help. And the
dimensions, which give a real clue to the original intended user, are a real
help.
Sorry if this does not help you. Pictures and dimensions would do a lot to help
Silver Salon Forums Members to suggest an age.