This is the mark of William Neale and Sons of Sheffield, England
and the lower case f indicates the year code for 1923 if it
is also in a shield type shape. I will add a photo. These dishes
are sterling silver and would have a value of $60USD each.
Some sites that I recommend for selling are Offerup.com (local), Varagesale.com (local) , Wanelo.com, http://www.decluttr.com, Bonanza.com, Ioffer.com, Etsy.com,Ebay and letgo.com (local).
You can also go to invaluable.com or liveauctioneers.com and search their directory for an auction house near you and consign to them.
Please do click the stars now for this one (bonuses are also welcome!), it is very important for me
to get good feedback for answering.