lincoln cent Rare or common error 0

[Squirrelly Girl]

I'm 3 years new, collecting coins. I'm not certified but want to be. I've found some interesting coins. This is the latest. It looks like a repunched mint mark. Maybe doubling on the back and date. I just found a woody looking coin. This might be one. But the oddest error I found on this coin, the Lincoln Memorial is wearing a Cap on the upper right corner. Yeahhhh!!! Any feedback would be appreciated.  Thank you.

[Coinbuf]

Way too many photos, just one well focused, cropped straight on photo of the obv and rev and a single closeup of the area you ae questioning is all that is needed.    Many of your photos are out of focus (on my screen anyway) but from what I can see in the clear photos I do not see any sign of an RPM, and no signs of any true Die Doubling.

The "cap" on the reverse as you call it, is just damage.   The corner of the memorial took a hit (or several) from something which left the impressed line and moved the metal from the top corner to now pointing right as seen in the image.

Woodies are neat and can look very cool but have little to no numismatic premium to collectors.   I would not be surprised if you see that term being touted as a big dollar selling point on sites like etsy or fakebook, those are scammers trying to rip off unknowledgeable buyers.