Vintage Yale solid Brass concealed Key Hole Covers Escutcheons unused

Description

for sale are five vintage Yale Concealed Key hole escutcheon covers . They are unused purchased at a recent carpenters estate.  They are Brass. I did a magnet test, and they are all non magnetic.  The key hole covers measure 2 1/4'' tall. They measure 5/16'' thick. The profile off the door will be 5/16''. They are all marked Yale.  My guess they could be as early as the 1940's Please see all pictures for condition. Ask questions before you bid. Any information will be appreciated. Buyer pays shipping with deliver confirmation usps first class package. thanks for looking.