Before the thread gets locked, Dewey Vickair on the Flues models. There is a reason Ithaca made the NID. Can we move on now keith?
https://vicknairgunsmithing.blogspot.com/2016/01/Ithaca - Flues model:
A very simple, crudely executed design that was clearly optimized for mass-production and assembly by unskilled labor, with its round bolt (easier to drill a round hole than cut a square one), coil springs and simple cocking mechanism that sees (basically) the barrel hook directly rotate the tumblers. This system is identical in principal, and similar in execution, to the way a Fox cocks its hammers. Broken cocking lugs on the hammers are a common failure in this gun. Unfortunately, accommodating these internal parts didn't leave an excess of material in the frame.
Flues models with cracked or broken frames are not a great rarity, with their very thin sidewalls and minimal, almost token radius at the base of the standing breech, especially in earlier versions. The trigger box, rather than being an integral part of the triggerplate, is a simple U-shaped stamping screwed to the triggerplate, with the wire anti-rattle spring trapped in between, thus ensuring that the screw will loosen over time. The safety pivot post is also a separate part, screwed into the triggerplate. The toplever spring is a coil retained by a headless screw threaded into the top tang, in single shear. The design also lacks any method for drawing the head of the stock up tight to the frame. The design does not appear to be meant to have a long service life. It is truly a vile affront to proper engineering.
No hatred for ed, or you keith. I do despise cowardly bullies, esp. toward the weaker and those with physical and cognitive disabilities (window lickers and libtards?), and narcissists
who think we're too dumb to recognize their self-serving motivation (BTW I still have ed's pictures

)...and the subset of narcissists whose only joy in (not much of a) life is thinking they have made someone fear them. No one here is afraid of you keith. Maybe try being helpful and encouraging?