Condition is everything when pricing a collector trap. Your trap was made between 1894-95 up until 1911. I have always found the #50 Oneida Communities were harder to find than the #50 Kenwoods, which were produced prior to yours, or the #50 Pat Date which was produced after yours. The trap is complete with the ring. Someone over the years added the U clevis, which is not Newhouse but does add to the trap, so leave it on there. The trap appears to have heavy deep pitting on the point of the cross, as well as the springs look to be quite pitted. The little v groove in the pan by the N in Oneida is more than likely a trappers mark and would not bother me with it being there. The #50 OC's range in the $400 range, to one in super mint condition upwards of $1500 with the later price being a trap that has seen very little if any use and is factory mint with excellent metal quality so do not get that figure fixed on your eye and miss the rest of the post value wise. Your trap should fall in the $500 - $600 range give or take on both ends depending on what the rest of the trap looks like, such as post nuts, teeth, any repairs, and other factors which will lower the value considerably if there are other problems.
