Curious to find out the value of this piece. Has correct Nappin & Webb stamp, but the shield that contains a letter that is usually beneath the stamp is not on this piece. It is my understanding that the shield and letter stamp usually gives the date of when it was made, but I haven't been able to find one exactly like it, without the shield and letter stamp. Has a small v stamped in the underside of the rim on the bottom as well. Thank you.