I have this 1972 Half Dollar Kennedy Coin and under the left leg the initial F is missing from the FG. I am new to this and I am not sure if this is an error. I have an image of another 1972 showing what it suppose to look like. Thank you for your help.
It is probably a struck through grease issue. The FG didn't form well because the letter was compacted with grease on the die, and it didn't allow it to form properly when the blank was struck. Nothing really major. I find the Misaligned Die Strike error on the Obverse more interesting.
There is a 1972-D "no FG" variety described here https://www.pcgs.com/coinfacts/coin/1972-d-50c-no-fg-fs-901/147888. The theory is that the die was polished down to remove clash marks, and they polished off the FG too. Yours appears to show considerable die polish lines, so I wouldn't rule out that yours is a similar thing, but only part of FG was polished off.
Thank you so much! If you don't mind me asking, but what would be my next step being that I have no Idea.
The FG initials are struck through grease or some other debris but I would think grease caused that. The obverse is a slight MAD, misaligned die strike. Interesting but not worth a lot.
It could very well just be grease too, I was just throwing that out there. I don't know of a Kennedy half expert or club you could ask; perhaps someone on here does. If it were me, I would look through all of the auction archives (Heritage, Stacks, GC, etc) and see if you can find one from the same die. Grease wouldn't produce many other examples but an overpolished die would. I don't think a TPG is going to give you a "partially no FG" attribution though.
Misaligned Die Strikes are common. I find that Dimes have the issue more than any other denomination. It's neat to find one in a Half Dollar but it's only worth what a collector of such an issue is willing to pay for it. Not really a major mint error. I like the ones in Ike's. Here are 2 from my collection..
As paddyman98 said, coins/errors are only worth what collectors will pay for them. Most errors are insignificant enough that the premium is virtually nothing. This coin would fall in the "not worth a lot" category. I looked at what was sold on eBay (not what people are asking, but what actually SOLD), and I would say you could get about $1.50 out of your half dollar. By the time you shipped it, I think your profit would be hardly worth your time. This is all my opinion. Take it for whatever it's worth.
Forcefully? I don't see it on the OP coin but it does happen. Here is the O in one dime clashed behind the ear of a 1892 dime, both incuse parts of the dies.
If a clash is occurring on the deep incused parts of a die pair, how is it the blank fields (highest part of the dies) aren't thoroughly mashed along with any other shallower details?
I don't know how, I just know that it happens. It's commonly believed that clashes can only be seen in the fields, and that's simply not true. Here's another example on a 1946 CAN$1 where George VI's ear is clashed in the island (dead center of the image below the pine, and in front of the voyageurs hand). Both elements are incuse in the dies. George's profile is also clashed elsewhere in the fields. I don't want to derail the thread but it's an interesting topic, since it goes against conventional reasoning. Again, I don't see the clash in the OP coin.
The clash on your half is through the top of the D in DOLLAR. Attached is a photo of a clash similar to yours on a 66 SMS Half Dollar.