Now my 'i only need one machine ever' is up to 5 in the shack from various sources I'm wondering how to check for the correct toughened glass - for example only one of my PF glass has a mark BS6206 per first picture below but on others I see little dinks like the Hook picture below. I've read on the line that dark lines should be visible with polarised sun glasses but I'm not sure if that applies to what should be fitted to Pinball.
