Definitely looks 1895-1900ish. The hard thing is that there were about 100 bicycle manufacturers at this time and identifying it without a headbadge may be very trying. My first thought was Lovell Diamond and the geometry looks identical to this lugged frame on Nostalgic--the fork and chainring are different but that could be a difference in years. If you can find a ghost of the headbadge, that would help, but you may never know for sure. http://www.nostalgic.net/bicycle382