
From left to right:
1. Earliest JvH with "triangular" pillars, JvH cloverleaf logo on face plate, half crank, fixed click, no hole in foot.
2. Early JvH with square pillars, JvH straight line logo on face plate, half crank, fixed click, hole in foot.
3. Early JvH with square pillars, stamped "The Kosmic Reel. A.G. Spalding Bros." on top of face plate and JvH "football" logo on bottom, counter balanced crank which is secured by a screw, on/off click, hole in foot.
4. Early JvH with square pillars, stamped with the "football" logo, screw on counter balanced crank, on/ off click, hole in foot.
5. Later JvH with round pillars, stamped Abbey & Imbrie on the face plate and the JvH "football" logo on the back plate, screw on counter balanced crank, on/off click, hole in foot.
6. Later JvH with round pillars, stamped with the JvH "football " logo on the top of the backplate and the A&F logo on the bottom, reinforced screw on counter balanced crank, on/off click, hole in foot.