1968-S Filled S Penny?

[blindbug]

1968-S 'Filled S' Penny?

I got this 1968-S Lincoln in my change the other day. It may not be much, but it filled in one of the few remaining spots in my penny book (all from change). However, I got to looking at it closer and noticed that the S appears to be 'filled'. I tried looking for an S / D variety for the year, but didn't see anything. Any thoughts on what I might be looking at, or might be missing? I don't THINK it's a double-die variety... but need to take a really good look with my loupe. When I get back home, I will take a few more pictures, if necessary.

Your opinion(s)?

 

[antique man]

Looks like a filled s but definitely take a closer look just in case.
Happy hunting!

 

[enamel7]

Filled S. They are quite common for that time period.

 

[blindbug]

Thanks for the responses! I was beginning to think anyone cared about my meager little find. I did take a closer look with my loupe and cannot seem to identify any doubling around any of the obverse or reverse. Oh well... at least I got to fill in a spot on my album!