Yup, it's the front mount dist. with the coil that just sits on top. In the stock configuration, 6V- is applied to the terminal on top of the coil and the primary is grounded via the points through a contact on the bottom of the coil which touches the points/ condenser mounting screw. With a Pertronix 6V electronic ignition conversion or a 12 V conversion (with or without Pertronix) one must reverse polarity.
Even backwards it works OK but not as good as stock, in my opinion. I don't have a scope but it would be an interesting experiment to quantify the decrease in spark intensity.
Thanks for your insight.
Pete P.
