Nat_

That is exactly what I thought: Redlands are bit curved and mine are not. Thank you.

I have added several photos into my initial post. Thank you

Hello. I need to replace a couple of broken concrete tiles on my roof. The problem is that there is no make's stamp on their backs. They look like Marley ludlow, Redland renown and Sandtoft lindum, but all of those have their stamps. Shall I then just measure the size and look for the identical profile and measurements? Thanks