Misplaced in time and space 錯置時空了

When I saw this poster, I got a feeling of walking back into an era of decades ago.
Shouldn’t it belong to an underdeveloped society?
Why on earth it appears here and now?
What does it imply?

看到這個標示牌,恍如回到數十年前的世代.
那不是屬於未開化社會的東西麼?
怎麼可能此時在此出現?
又意何所指?