Vintage knit sweater in geometric pattern

Gorgeous and stylish sweater with geometric patterns from brand Henry Grethel. Purchased vintage in 2018 from Kokorokoko in Chicago. Features black, blue, grey, red, and teal colors. Knit is well loved but is in good used condition. Some loose threads (particularly on sleeve hems) have been captured in pictures. PTP 23” Length 29” Arm length 25”