Thanks all. The LALD 3 sheet is actually a local find - it has a censor stamp from the Ontario Board of Censors. I actually thought that particular censor stamp wasn't used until the 80s so nice to find out it was used in the early 70s even.
My wife and I were zoned out watching the tube on Friday and came across Pulp Ficton and ended up watching most of it. To my surprise (and coincidentally) the Motorcycle Gang one appears in the flick! Its a somewhat scarce poster especially the 3 sheet. This is the scene where vincent vega takes marcellus' wife to jack rabbit slims... such a cool scene and movie to boot. Guess Tarantino likes the poster too!