I thought I'd post a few links to my blog about Profiles in History, in an effort to share some information and opinions...
Here is a link to an article I posted about today's auction:
LINK
Here is a link to an interview I conducted with Joe Maddalena, owner of Profiles in History, back in June:
LINK
Here's a link to the Ghostbusters Proton Pack mentioned in this topic - it did make it to the catalog, but was pulled once it became known to be a replica with a real COA -
LINK
As far as authenticity goes, I don't think it's accurate to make blanket statements one way or another. Given that it is all resale, from a variety of sources, there is always risk. Most all are consignment pieces, so in a way, it is as though Profiles is akin to eBay, only in most cases, you can't know who the sellers (consignors) are. In short, you can't know the "Feedback" of the consignors, in that it is confidential in many/most instances.
The upside is, many consignors are industry people with direct ties to the productions - crew, actors, and other principals.
The downside is, some consignors are merely collectors/dealers that buy on eBay and flip the items in the next auction.
Best advice is to research any piece you might be interested in fully - always assume something is inauthentic until proven otherwise (as opposed to assuming it is good unless proven bad). Also to be aware of the
Terms & Conditions, which usually comes down to "buyer beware" and "all sales final".
If you have interest in original props, I highly recommend checking out the
Movie Prop Forum - a wealth of information from experienced hobbyists.
Jason