Postby JLDoggett » Fri Aug 16, 2013 11:26 pm
Yes, it is sterling silver.The 98-17 could be an item number/stock number. I have a set of 40 similar to yours, they are numbered 1-40, 2-40, etc... They would have made possibly hundreds of them. It is a plate or under-plate. It has many uses, serving plate, charger plate, cookie tray, any use you would have for a china plate except as a dinner plate (it would be ruined quickly if meat were cut on it.