Crochet cotton for US size 4 hook or size 5 thread, 80 grams or just under 3 oz

Needed: Cone-shaped lampshade frame measuring 3 1/4” diameter at top and 12” bottom

Intermediate. Charted with some written instruction.

Pattern 2, page 5 in Magic Crochet.
Shown on back cover of Crochet Monthly.