From the days when bananas were novel in the US and a person needed a cookbook to know how to use them. Ham and Banana Bake for example.
The language is charming to my ears. Doily? Did I hear correctly? And did someone say speck of salt?
Have filling in readiness so that sandwiches may be
Put together while toast is hot
Arrange sandwiches on a doily covered plate
Garnish with celery tips and sections of unpeeled orange
Cool and spread between split lady fingers
Then dredge with powdered sugar
For variety omit the sugar topping
And cover with yellow frosting
She’s got it. Yeah, baby, she’s got it. I’m your Venus, I’m your fire, at your desire.
While I was preoccupied (for the past 30 years) with the crass onslaught of foodism, merciless time was charging forward though the 90’s and aughts, to a time (now) when a Banana Finger Sandwich seems positively antediluvian. Through a millennial lens, the 8o’s appear prim. Perhaps not Toast-wich prim, but certainly this side of Pearls Negras prim.
Aah, the doily covered plate. Those were the days. Bananas are not greasy and do not stain doilies. Word. 
The Lunch Encounter 