Tilt window parts

Good Morning. The lower window panel was raised up a bit and we didn't realize that the channel locks were not engaged. A strong wind blew the window in, causing it to swing down. When the panel hit the sill, it broke the pivot brackets and sent the panel to the floor. We bought this house a number of years ago with these windows. There are no markings in these windows and local shops have been unable to help. Would you have anything we could replace these pivot brackets? Any help would be greatly appreciated.