Interesting, I could understand one being mislabeled/misboxed, but two? The plot thickens.Here is another diamond "Rocket Style" Aristocrat Jr from Achim's site:
http://www.mr-razor.com/Rasierer/One-Piece solid guard bar/1950s Aristocrat Jr.Rocket style.jpg
But like you said it's hard to know without feeling the weight and heft of the Jr. in question.
found this one as well:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=150419769862&ssPageName=STRK:MEWAX:IT