I agree with B-T-P-H. Lou Lampson, whose actual whereabouts remain unknown (no collector has seen him within the last 5 years or so), is at best a menace to collectors. The original gameusedforum.com is littered with threads about American Memorabilia and the absolute junk that this Lampson character "authenticates".

The standard defense is usually something like "Lampson authenticates up to 1500 items a day, and some are bound to slip through the cracks". Boy, that's great comfort to any collector who may be putting an enormous amount of cash into something that's "slipped through the cracks". There are plenty of individual collectors who possess much more knowledge about a particular team, league, or manufacturer than Lampson does, and I'd put more stock in what they say than someone whose defenders flippantly blow off outright boneheaded inaccuracy by saying that some will slip through the cracks.