I’d like to ask on the sentence in The Mistake of the Machine, one of Father Brown tales by G.K. Chesterton.
There burst and fell into his private room a man in the filthiest rags, with a greasy squash hat still askew on his head, and a shabby green shade shoved up from one of his eyes, both of which were glaring like a tiger’s.
This “man” here is a billionaire trying to disguise as the poorest of the poor. I don’t understand what “a shabby green shade shoved up from one of his eyes” means. I can get the picture of the other parts somehow but this one.. I can’t pinpoint the meaning of the word “shade” here. Is this green shade some kind of sunglass? Was he wearing the glass onto one of his eye? Or does this shade indicate bruise around his eye, which might’ve been common among the poor in those days? I also don’t know what this “shoved up” means. If it means “to put into” as dictionaries say, doesn’t it sit poorly with the preposition “from” used alongside it, don’t you think? I mean the direction indicated by each word (“shove up” and “from”) seems quite opposite to me. Could someone clarify what did the part around one of his eye look like for me please? Thanks.