Philbert, although the Grade 3 was a higher grade, it was not considered high grade by the company. Nowadays finding a SAC gun that has survived in near new condition seems virtually impossible; but if one can be obtained that individual will be amazed at the quality and attention to detail given even the lowest grade SAC gun. One of our members here has a near new SAC Grade O gun that is stunning, and perhaps he'll post photos if he sees this thread.
I'm privileged to own a 1901 vintage Grade 00 12-bore, the lowest grade and a $29 gun at retail in 1901, that has survived virtually unused and the quality and attention to detail in that gun is amazing; wood to metal fit is flawless, and all screw slots are perfectly qualified.
Most of the survivors we see today have been used and abused to the point that they are ugly undesirable beaters, but high condition survivors are beautiful guns and there is little wonder why low grade SAC guns were good sellers in their time.
Battle - I believe our Friend David Noreen will be posting some pics of the above referenced Grade 3 gun soon.