Perusing an auction site and have my eyes on a 1904-O Morgan MS-63 DMPL by SEGS..... I'm not necessarily a Morgan guy but I do love an attractive coin and this one is certainly attractive. Were it not slabbed I would be cautious that it may be tampered with, but I am not familiar with SEGS and it's hard to identify tampering from photos sometimes. Is SEGS reliable enough to identify a tampered coin?
SEGS is not a reputable company. That being said, I've seen several people crack these coins out and submit them to reputable companies with mixed results, though I've never seen a counterfeit or anything of that nature. Best to treat it raw and do your due diligence.
I have seen some really nice coins in SEGS slabs but most folks don't care for the brand. I understand that the plastic they use is really tough to crack open.