72 readers guessed the 70's but the amazing red room is actually circa 1968. It was published in The Practical Encyclopedia of Good Decorating and Home Improvement, published by Greystone Press (in 1970 - hence the half cigar!). We found it via Ouno.
Congrats to the very astute 54 voters who got it right on the nose by choosing the 60's. 22 readers said the 80's, followed by 13 who guessed "Now" (I can see why!). The 90's got 8 votes, the 50's got 6 and the 40's brought up the rear with one lone vote.
Some of the commenters who got it right:
Looks like 1966-1972. I'd say '60s, looking at the furnishings and technology in the room. - ladykins
I said 60's - Perhaps "cutting edge" use of shag carpeting on the walls? - LilyC
hmmm... late 60s... or 70s? - twitteringbirdie
I'm gonna say 60's/early 70's. The carpet running along the floor on the wall and the tailed zebra rug at least date this a little. - Christopher B
Late 60's-early 70's. - robinette
I'm going to guess mid-late 60's. That looks just like my grandparents' style... mix of tribal and modern. Except they had a (real) leopard hide rug and a wall-mounted bar/storage cabinet covered in real zebra hide. And lots of Danish modern furniture. When they relocated to Chicago a few years back, I snagged a real Howard Miller Nelson sunburst clock and African drums... - Benjy
The lighting and tv say mid-to-late 60s to me, but the overall, general style stayed, carried or continued on until the mid-to-late 70s (i.e. the Willis' upstairs from the Jeffersons had this palate of colors and materials as well as the art). - dn
this one is a little tough. I'm thinking very late 60s but the little tv on the table appears to be more 70s technology. - beddybee
I'm saying late 60's to early 70's for small TV's like that did exist at that time frame. In the early 60's you can buy a small 12" B&W portable TV that was trully portable and yes, it had tubes for it's main chasis. I know, I had one for about 4 years in the late 70's, early 80's that dated to around 1962 for it only had the VHF tuner. Shag carpeting was a definite big hit in the 70's but I'm still sticking w/ late 60's, early 70's. - ciddyguy
Check out the rest of the comments right here and thanks for playing along!