Looks like ATL for this piece. Highly rated fully clad triple ply stainless steel cookware. All-Clad clone for much less coin.
![[Prime] Cuisinart MultiClad Pro Stainless 10-Inch Open Skillet $53.62 Delivered @ Amazon US via AU](https://files.ozbargain.com.au/n/09/870109.jpg?h=8c42895b)