Need Help MYSTERY PRINT MEDIA

[Bryce I]

I was just gifted two unused 54" rolls of Micro Perf. There's no markings or branding anywhere on the tubes, but I was told one is for vehicle windows and the other is for storefront windows. The holes on one roll are slightly bigger than the other. Do you know which is which?
Thanks

 

[Solventinkjet]

in general smaller holes are for store fronts and bigger holes are for vehicles.

 

[Boudica]

I didn't realize that distinction - I thought perf was for glass, whether it's a window on a vehicle or a storefront. gtk

 

[Andy D]

I didn't realize that distinction - I thought perf was for glass, whether it's a window on a vehicle or a storefront. gtk

There's also a perf for channel letters, the adhesive side is white.

 

[SeeEmWhyKay]

I didn't realize that distinction - I thought perf was for glass, whether it's a window on a vehicle or a storefront. gtk

In California at least, vehicle window perf has to be 50% visibility or more or you can get a fix-it ticket.