Are these ESB lobby cards or something else?

[SOJ]

Just dug these out of a storage box. Bought them 7 or 8 years ago. I don't think they are lobby cards but I might be wrong. They are trademarked Lucasfilm 1980., printed in the USA. They are 8"x10" and blank on the reverse. I'm wondering if they are maybe fan club postcards, any ideas?

 

[Twin30mm]

Yeah, ESB Lobby Cards.....Nice set.
Looks like you're missing three, though.

http://www.starzonetoys.com/vintage-star-wars-empire-strikes-back-set-of-8-lobby-cards-1980-10-x-8-photos-496-p.asp

http://forum.rebelscum.com/t1101911/

 

[SOJ]

Cheers bud, thanks for that.