Miniature High Voltage Ignition Coil Furnace Spark Ignitor UNKNOWN FIT

Brand new!  Manufactured by AMC/Honeywell.
We do not know what these fit, but they are likely ignition coils for a furnace control board.
I did find one website that states its a 20vAC input / 10kv output coil!
Perhaps you can use it to build an itty bitty tesla coil!