[Sold to BrassMagnet]This came in a used Lyman 450 that I purchased off eBay. There are no numbers, but my caliper says the pin is 0.580" (Though that may be a little large as the calipers were cold from being stored in the basement). Didn't know they made a sizing die that large. I have no use for it. Also included is the top punch (again, no numbers) that looks like it would fit a large conical/miniball. The die had the O-ring on it, but there is not an O-ring groove on the die, just the necked down section as shown. It was a bear to get out and has a few scratches where someone tried to pull it out with pliers, but looks to be in serviceable condition. $25 shipped for everything in the photos? USPS MO, or PayPal+3%
"I'll take it" here gets preference over all offers.