NOS Antique 1934 Stromberg ignition co condenser electrical auto Truck part Vtg! New in original box!!!
found this online
See if there is resisted continuity between in and out or if there is zero connection.
This looks likely to be to old to be a radio interference supressor, and if it isn't that it is likely a simple gap as Rich says. Idea is that if spark has to jump a big gap to get to the little gap at spark plug, the extra voltage will be good for performance-economy-whatever the ad says.
If supressor, likely a resistance device.
"Condenser" in name...could it actually contain a condenser/capacitor?? Stromberg certainly made lots of those for its radios and stuff. Could a condenser of some sort be used as a secondary store-and shoot voltage enhancer OR as a way of absorbing ignition noise? I have no idea. I've only seen them in primary circuitry.
selling as pictured
more than welcome to pick up at shop in butler pa & save shipping.
121624 cg