Robert, I'm not sure which hangtag variety you are referring to when you say Estes logo on the left and Damon on the right. Is it the red hangtag from the '71-'72 timeframe in the file posted by Phred above? Those were never used in 'Skill Level' packaging. If you are referring to the red skill level packaging hangtag, that was only used on one bagged kit to signify Skill Level 5, namely the Mercury Redstone kit (a pink one was used for Level 2, and those are very common). Can you enlighten me? As for the special situation for 'K' kits that you refer to, I may already be aware of it but just don't realise it since I have no way of knowing what you are referring to. If you want to email me and give me a subtle hint I will let you know whether I'm aware of it. If not, my curiosity would undoubtedly push me to do the research.

Joe