Tweet - Helmut Hoffer von Ankershoffen né Oertel Published at 2020-02-15 22:44:00 +0100 via @h_ankershoffen Slow waves in SFO #helmut_hoffer_von_ankershoffen #sfo #slowmo t.co/TCBrD8IhCu Slow waves in SFO #helmut_hoffer_von_ankershoffen #sfo #slowmo pic.twitter.com/TCBrD8IhCu— Helmut Hoffer von Ankershoffen (@h_ankershoffen) February 15, 2020