C. F. Orvis’s Bee (from Favorite Flies and Their Histories - 1892 - by Mary Orvis Marbury)

Hook: #10
Thread: brown
Tag: gold
Body: alternating wraps of green and yellow chenille (peacock herl used here)
Wing: wild turkey tail tips
Hackle: brown hen

Head cement recipe:
Goop
Xylene (epoxy thinnner)

Instructions:
Fill a quart jar half full with Xylene
Squeeze a tube of Goop into the Xylene
Shake until the Goop is dissolved; add Xylene to desired consistency

Apply with a pin or needle dipped in the liquid

https://youtu.be/AJbvJUixaCs