RRM,
That same gun was also sold as the
Iver Johnson Wagonmaster. Anthony Imperato, president of Henry Repeating Arms, told me that his father, Louis, designed the Erma-produced Ithaca 72. Someone by the name of
Imperato worked for Ithaca, and for Iver Johnson. Henry bought the tooling from Erma (or its creditors), and moved production to the United States. Please, take a look at this:
http://www.rimfirecentral.com/forums/showthread.php?t=310671#2
To round out our "history lesson", The Imperato family has been in the gun business since the early 1900s. They own the John Jovino gunshop in New York. The late Lou Imperato, a few decade ago, was involved in importing some replica black powder revolvers for Colt, through (I think) his Iver Johnson connection. Someone on this forum, in the Henry section, had posted a link to the article about it.
EDIT:
I found the link to the article. Here it is:
https://store.bluebookinc.com/Info/PDF/POWDER/MBPHistoryOfColtBlack.pdf
...it originally came from
Hardcase, in this thread:
http://www.rimfirecentral.com/forums/showthread.php?t=298842
BigLoop22