Coat of arms of Finnish heraldist Ahti Hammar, 9.9.1911–26.1.1979.
Own work based on blazon from Heraldic Society of Finland. Lamberquin edited from File:Steinfurt wapen compleet.svg, helmet by Reijo Helläkoski, National Archives of Finland
Original design and blazon by Ahti Hammar, emblazoned by Fenn-O-maniC