any info on 1928 1 dollar red seal u.s.currency?

Answer 1

It's a better type. The 1928 $1 United States note was only made in 1928, unlike the far more common silver certificates. I would say they are worth a minimum of $15 in heavily circulated condition on up to a few hundred for an uncirculated note.

Here is a listing of Series 1928 $1 red seals presently for sale on eBay, which should give you an idea of what yours is worth:

http://shop.ebay.com/_US-Paper-Money__W0QQItemTypef44c8c27ZSmallSizeNotes13afd6bbQQ_fxdZ1QQ_ssasZ4Q7c5?_nkw=1928++%241+red