SOSS 216US26D Model 216 Invisible Hinge – Satin Chrome – Siggia Hardware
Soss Cabinet Invisible Hidden Hinge Concealed Mortice Various Models Genuine
SOSS® 220SS Series Invisible Hinge, 180° Single Action Hinge, UL Fire Rated Hinge for Wood or Metal, 316 Stainless Steel Material, Bright or Satin Stainless Steel Finish | Kitchensource.com