You are bidding on two (2) each Wm Rogers Oneida Silverplate HANOVER Hollow Knives with Bolsters, 9.5" (Please check out pics of the knife's blade where it is enscribed: "WM. A. Rogers Warranted 12 Dwt" then a symbol of an R in a Horseshoe Mark on the silverplated blade.)
The purple reflections you see in the silverplate are the orchid's reflections that are hanging over head.
NOTE: Kindly review my feedback as to other silver pieces I've been selling here on eBay.