DATABASE: Arthur C. Vogel

STAMPS

1935
Canada, Definitive 20c, 6c Air landscape only

1938
Canada, 6c Air picture only
Ecuador, US constitution, frame and lettering on airmail stamps 

1940
Ecuador, 50th anniversary of Pan-American Union, postage values (2)

1942
Canada, War effort air stamps picture only

1943
United States, Oppressed nations, frames only

1946
Canada, Peace reconversion 14c

1947
China, Directorate general of posts, $100

OTHER PHILATELIC ITEMS

1938
United States, Vignette of Eaton's fine letter papers label of Flagship over downtown New York

NON-PHILATELIC ENGRAVINGS

1925
Train engraving on Seaboard-All Florida Railway Co coupon bond (1)

Notes:
1) Stampcommunity website - Collecting by engraver topic
2) ABNC index copy cards