I purchased this woolen tam in a thrift store. I love it. It fits well and is beautiful. I decided to try to write down the pattern:
Dimensions:
Flattened, it is 10” in diameter; Turned over, the head opening is 5” in diameter; garter st rim is 2.5” deep measured from the ribbing. The Aran pattern is 3" deep; 8" in diameter when flattened. The center stockinette disk is 2" diameter
Gauge: Garter st – 16 sts= 4”, 11 purl rows (22 rows)=3”
Directions:
Cast on: 76
Ribbing:
In the round: 8 rows of ribbing made by repeating the following 2 rows, 4 times: (76 sts, when done) (ribbing is 1.25” in depth):
R1: (K1, Ptbl)*
R2: (Ktbl, P1)*
Place 8 markers, evenly spaced, repeat the following 2 rows 4 times (76 + 32 = 108 sts when done):
R1: K, increasing(make 1 right) at each marker
R2: P
Begin pattern below for the crown, beginning at the bottom right. When worked up, it is 3” in depth.
When done with the above you have 13 x 4 sts = 52
Work successive decreases as follows:
(K2tog, K1)* for one round (35)
K2tog* for one round (17)
K2tog* for one round (9)
K2tog* for one round (5)
Close the final round by breaking the yarn and running through the 4 loops a couple of times, then weaving end in.
Make dense pompom, 2" in diameter.
Underside of hat.

