German Black Leather Boots

1940's ERa German Black High Top Leather Boots. Cut similar to riding boots. The leather around the calves and up is very rigid, while the lowers are soft and pliable. Inside the top of the boots is some sort of ink stamp we can't make out and below is stamped 8  87943 2 into the leather. There are still parts of the pull tabs. The soles are well used leather but the heels look to have been replaced. Have been well used but still in good condition. These came out of a collection that was all WWII items, but I am by no means a expert on German boots, so I am saying 40's to play it safe.