I have the Camillus stamped twin to your knife. In his book Official Scout Blades, Ed Holbrook shows the Camillus version was produced in 1992 with solid blue handles and a hot stamped shield. Oddly, there is no listing in his book for the Colonial knife like you have. Just speculating here but it might be possible that one of these companies made the knives for both themselves and the other company as well. That's been a pretty common practice in the knife industry for many years.
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Johnnie Fain 1949-2009
Our knives are more than metal and bone;
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