STAMPS
1938
Canada, Definitive 50c vignette only
Venezuela, Definitives, vignette on La Guaira values
1940
Liberia, Founding of Commonwealth 5c vignette
NON-PHILATELIC ENGRAVINGS
1920
Czechoslovakia, River scene on 5000k banknote P19 (1)
1922
Bulgaria, Reverse of 50l banknote P37, with Baldwin (2)
1935
Canada, Windsor Castle on $25 banknote P48 (3)
1944
Pioneer spirit, on Oregon, Washington Railroad & Navigation Co corporate bond, Northern Pacific Rwy corporate bond (1945), RKO Pictures stock certificate (1950), Pacific Power & Light Co stock certificate (1965), Indiana National Corporation stock certificate (1977) and INB Financial Co stock certificate (1989) (with Louis Delnoce jr and Sydney Smith) (2)
Undated
Science and manufacturing, on Libby-Owens-Ford Co stock certificate (background only) (2)
Notes:
1) Stampcommunity website - Collecting by engraver
2) The Engraver's Line - Gene Hessler
3) The art and design of Canadian banknotes - Bank of Canada
1938
Canada, Definitive 50c vignette only
Venezuela, Definitives, vignette on La Guaira values
1940
Liberia, Founding of Commonwealth 5c vignette
NON-PHILATELIC ENGRAVINGS
1920
Czechoslovakia, River scene on 5000k banknote P19 (1)
1922
Bulgaria, Reverse of 50l banknote P37, with Baldwin (2)
1935
Canada, Windsor Castle on $25 banknote P48 (3)
1944
Pioneer spirit, on Oregon, Washington Railroad & Navigation Co corporate bond, Northern Pacific Rwy corporate bond (1945), RKO Pictures stock certificate (1950), Pacific Power & Light Co stock certificate (1965), Indiana National Corporation stock certificate (1977) and INB Financial Co stock certificate (1989) (with Louis Delnoce jr and Sydney Smith) (2)
Undated
Science and manufacturing, on Libby-Owens-Ford Co stock certificate (background only) (2)
Notes:
1) Stampcommunity website - Collecting by engraver
2) The Engraver's Line - Gene Hessler
3) The art and design of Canadian banknotes - Bank of Canada