Roth Decal Prints (60's, 70's, or 80's???)

There were about thirteen different 8.5" x 11" roth decal prints up on Ebay last week and all went for less than $20 a piece. I picked up the two shown above as well as the Big Brother one below. I believe back when you could order a Roth screened t-shirt you could also purchase prints with the same graphic. The seller said he picked them up in 1986 at a Los Angeles thrift store and they are all on thin paper which makes me believe they could be older, possibly of 1960's vintage???