The FB account dedicated to looking for Brian had this as an image.
I decided to look a bit or some info since the name on the card or whatever this is a Vargo name as well.
View attachment 317653
From a quick look at this, it appears that the black angus restaurant as a trading name, was active between 1978 to 1988. I also found an image from the place "Black Angus, Houston, at alabama and weslyn"
Here.
Not sure if this means anything or if this item was even in the collection of stuff they had from Brian.
The place itself appeared to have been the Black Angus first then later became "
the confederate house" (source). Then the state grille (?) It was demolished because the owner of the building did not want to renew the building masse and I think it is no longer ?
Long story short; The Black Angus appears to have been active from late 1978 to 1988. It could also be entirely irrelevant to the topic on hand if it is something belonging to someone else.