CH1 XR-Small coil.
CH1 XR-Small coil.
Retail $60.00
These were standard type fitted to XR models.

CH2 Magneto with condensor.

CH2  Magneto type with Condenser.

Retail $75.00

This is the only one I can find that is suitable for Flywheel Magneto type ignitions, the bracket around it must stay for good spark.

CH4 6 Volt Points Single coil.
CH4 6 Volt Points Single coil.
Retail $75.00
Replacement for Honda 6 Volt battery points ignitions.
Primary resistance is 1.48 Ohms, Secondary is 9K ohms.
Mounting centres are 90mm. 
CH3 Twin lead 12 Volt points coil.
CH3 Twin lead 12 Volt points coil.
Retail $120.00
Early Honda CB750, 12 Volt battery points coil. Primary resistance 4.0Ω,  Secondary is 15KΩ
Mounting bolt centres are 102mm.

CL3 & CL4 Lucas type.

CL3 & CL4  Lucas Type.

Retail  $75.00 each.

CL3 is 6 Volt, CL4 is 12 Volt, they are replacements for Triumph / BSA early twins.

Remeber that with Boyer (single fire) type ignitions where the primary coils are in series you use two (2) 6 Volt coils.