Seller: son*of*a*plumber (2,025) 100%, Location: El Paso, Illinois, Ships to: US & many other countries, Item: 232139203402 Condition: Up for your consideration. A Antique Sash Lock by JB. Yeagley 1878 Pat. This Latch would operate with a knob similar to a door knob that goes into the 1/4 inch square hole in the center. When turned to one side it would lock up to the side of the window or door to hold it in place, the grippers are spring loaded. JB Yeagley was a Canadian inventor and this information comes from the Canadian Patent Office. It would be Mortised into the window. The face is 4 1/2 inches tall and 7/8 inches wide, it sticks back about 1 5/8 inches. That is as much as I could find on this piece. I do not have the knob that goes with it. Please look at the pictures they are a large part of the description. Please email with questions before bidding. Good luck and happy bidding., Material: Steel, Details: txzj pxzj4754 txzj1 Add a map to your own listings. FREE Trial!