Sash window fasteners (Rottingdean BN2)
Set of four like the one in the photo: https://www.reddiseals.com/product/quadrant-arm-fastener/ (medium size, polished brass). New, but I bought more than I needed and firm wouldn’t accept returns after two weeks! [Plus one used fastener of a different type if wanted.]
To reply to this post, please log in or sign up.