Off the SoD – Special Hobby Brewster B-239 “Taivaan Helmi” - Buffalo Eino Luukkanen F2A - iModeler
Helma in the incubator, October 14, 1983, Babies, incubators, multiples, The Netherlands, 20th century press agency photo, news to remember, documentary, historic photography 1945-1990, visual stories, human history of the Twentieth Century,
Toys Wall Calendar 2022 by Helma – MegaCalendars.com
The Pacific War Online Encyclopedia: LO "Thelma", Japanese Transport Aircraft
Taivaan Helmi over Finland: Special Hobby 1/32nd Brewster F2A Buffalo (Model 139) | Large Scale Planes