nothing listed, and this looks minor, but it does seem to have thickness on the date and maybe notches, minor as they may be.
That is normal. 1974 came in both large and small dates. Yours is a large date. The "notching" you see is normal for the large date...either some slight master die doubling or just part of the design. You can see the same notching in the images of the large dates here: http://lincolncentresource.com/smalldates/1974.html
