EBay, Collectors, Flea Market & Antiques

As I was researching an antique charger at the Peabody Essex Museum Library in Salem Ma, I found this pattern illustrated as a front piece in a research book I was reviewing. I know it dates very late 1800's to early 1900's. Since there are so many pieces in this dinner service, I have not gone to look at each piece to see the marks. The set is in mint condition with every piece marked with one or the other marks as I indicated.

I am going to visit a consignment shop next week to see if they can sell it. I thank those who suggested reference books but none of them are of a help. The marks are not signatures, they are printed marks or they cover marks later than relevant to this situation.

I have a list from an on-line seller, they had a long list of this pattern at ridiculous prices. I printed the list sometime in the 1980's. They sold out right away. The last time I checked , they had only one luncheon plate for sale. I won't contact them because I called several years ago and they offered me $3.00 for an item they had offered for $79.95 and I would have to pay shipping. I would never deal with them. Since they sold out right away, I bet they have a wait list for more of this pattern,

Wish me luck. Consignment is tricky, I have an appointment next week for them to review the pattern, the paperwork and pictures I have and check their terms.
Thank you for your input and that of others.