We didn't have bento boxes like these in the past.
Lunch boxes like these weren't around in the past.
昔はこういったものはなかったです- We didn't have things like these in the past. もしくは we didn't have bento boxes like these in the past になります。Lunch boxes like these weren't around in the past でも大丈夫です。
昔 - in the past 、 back in the day ( カジュアル)
こういった物 - things like these
なかった - didn't exist (存在していなかった), didn't have、weren't around
弁当箱 - bento box、lunch box
イギリス 
