Chainsaw Repair

Kevin I'm confused about the 76-77LP marked on the box when it should  be 76-77LG. I can't remember this chain ever being called LP. I do remember a few months ago a women from Oregon sawchain posted on A.S. saying the 76-77LP was discontinued in 1980.
I think she has bad information because I never heard of 76-77 LP  chain being discontinued in 1980.
I field tested 73LG and 77LG chain on my Jonsered in 1980-81 for Oregon which was then introduced in 1982. I have proof here from a July 1982 Chainsaw Age magazine ad. The bottom left hand corner of my pic here shows the date and the introduction of the 76LG. Notice they also called it low profile .