Thank you
Hello, thank you for posting,
I believe you have the older style that is no longer available. The newer style is 95-026 and the 95-027 which are self locking, no need to stamp the corner to secure it in place. I cannot guarantee this is the exact style you have while installed, so you will need to compare dimensions once the original is removed.
To remove your existing corner you will need to "tap" it apart so not to damage the glass. Flip the corner around to expose the wool pile. Sometimes there is an opening in the frame below the wool pile that exposes the corner key in the frame. If you do have the opening exposing the corner key, take a flat blade screwdriver and try to tap out the corner using a hammer or mallet. In some cases you might need to drill out the "dimples" in the frame that secure the corner in the frame. Take a look at the related video.
Let us know what you think and if you have any additional questions!