This logo is a legit WWII maker's logo.
I had an entrenching tool that had the same marking, which is "AB&C"
A maker still unkown to me but a legit one.
"I didn't use any weapon in combat during the war, but i killed hundreds, perhaps thousands of men...they're now at the bottom of the sea"
Walter Borg (ex-MI6) Agent and radio operator in Malta, Tunisia and Italy between 1941 and 1945. Arrested twice, tortured twice, escaped twice, survived the war...
"The future torments us, the past holds us, that is why the present escapes us."
In Memoriam :
Laurent Huart (1964-2008)
The maker is A. Bredt & Co. they are still in business as Idealspaten-Bredt GmbH und Co. KG.
JEDEM DAS SEINE