Thanks again. Since the earlier postings, I've done a little more research. I gather that Lefever made the I-grade especially for Schoverling, Daly & Gales, the big NYC sporting goods dealers (Daly being the original Charles Daly), even though there are no marks to that effect on this particular gun. I plan to remove the leather spacers and keep the buttplate as is. From everything I read, including several current value guides, I think I got my $600's worth.