I have recently purchased 3 All Clad pieces used. I have a 7" nonstick French pan, 9" metal French pan, and a 10" or 11" nonstick skillet. None of the pans have any markings I them, so it is making it difficult for me to identify them. The handles on the nonstick pan are at a very slight angle. While the handle on the 9" is at a greater angle. The 7" appears to be aluminum in construction due to the sound made when tapping the bottom. The other pans have a similar sound to each other as being more metallic (steel). Any and all help is appreciated. Thank you everyone in advance.