I was searching for some time a replacement for poliwatch as I find it crazy expensive - £7 for a tiny tube. So one day I ran across a post where somebody mentioned Autosol as an alternative. I thought I'd give it a try. Hmm.. this was definitely not the result I was hoping for. From 1 scratch I end up with the following.
It doesn't worth any money at all but for me it has sentimental value. Any thoughts of how can this be fixed without replacing the glass as I would like to keep it in its original state.