This jar is one of my more recent acquisitions (I'm writing this in May 2008).  I saw this jar years ago at a Muncie show and always remembered it but as the years went by, I somehow had transformed it in my mind into another jar with the same name, "Imperial" but which was a figural with a hand holding a mace.  When I spoke to the owner recently and he told me he might be willing to sell, I was very excited thinking I would be getting an unreported amber version of the jar with the hand holding a mace.  We both talked over a price and both referred to it as "the Imperial Jar".  When I got it and realized the misunderstanding, I had to renogotiate because while this is a fantastic jar (and the only one that I'm aware of) it really wouldn't compare with the figural version which had never been reported.  In the end, we came to a figure we were both happy with and the deal went through and we're both happy.

Regardless, as I mentioned, I believe that this may be the only HG example.  There is a quart size reported in the Red Book so I suppose there must be one of those out there somewhere (although occasionally the Red Book will mention a jar which is only known through shards, so it's presence doesn't necessarily mean that a complete mint example exists out there).  I'm very pleased with the jar.  It has a lovely orange amber shade and an interesting closure.  All these jars come with clear closures so this can't be counted agains the amber too heavily.