Changed Series on Hit

I just got a hit on a bill that the series was changed from 1988A to 1988. I don't find many of either of those series, so questioned if I'd made a mistake on entering it. So, I looked at the site Tim had posted the link US paper money.

There is no 1988 E-N. Printing stopped at Block H for the 1988 series. For series 1988A, printing went to E-R.

Markus, would you please change this bill back to a 1988A. It's impossible for it to be a 1988. Thanks.

Tony