Great, thanks for the info.  I have two bayonets as well both marked with the year 1898.  I bought them about a year ago because I wanted to get ones with the same year that the rifle was made based on serial number #135xxx.  Was that the right assumption?  Also one has the raised rivets and the other the are flush, is one real and one fake?  I'll get some pics on here later this afternoon so check back!