I think the Morphy text left a bit to be desired but didn't seem to hurt the sale.
https://auctions.morphyauctions.com/...LOT651605.aspx
I had always heard that the stolen .410-bore was the one and only Sousa Grade .410-bore? I also believe the Morphy folks are misreading those 1960s Ithaca counts. I think there were 22 No. 7Es and two of them were 28-gauge and two .410-bore. Also, there were two Magnum-12 No. 7Es and one Magnum-10 No. 7E that Walter stated in his book was 500146. So far, I've recorded seven 12-gauge, six 20-gauges, one 28-gauge and the two .410-bores. Add the unknown 28-gauge and the three Magnum-Frame 7Es that accounts for 20.