The American designer Gerry Powell (born 1899) created the fonts (1937) and (1938).
Onyx and Stencil are included in the Linotype Library.
Stencil is a trademark of Heidelberger Druckmaschinen AG, which may be registered in certain jurisdictions, exclusively licensed through Linotype GmbH, a wholly owned subsidiary of Heidelberger Druckmaschinen AG.
Onyx is a trademark of Monotype Typography.