Mod style turtleneck maxi plaid bottom dress

Gorgeous!!!! Just gorgeous maxi dress... Black ribbed turtleneck, with a plaid bottom and 2 big pockets on the front. Plastic zipper zips up the back. No tag, could be handmade. Has small belt loops but no belt. Would look awesome with a wide black belt. Late 60s early 70s
Measures armpit to armpit 16"
Sleeve length 22"
Waist 14"
Length waist down 39"