http://www.potsaa.com/vintage-cup/

Is this vintage glass custard cup?
I found a cup of cream in my yard. Here is what is printed on the bottom: "CUSTARD 6 oz 177ml CUP USA 1034 "It also has a logo of an anchor which I watched and thought it was one of the company Anchor Hocking. Do you it may be vintage, if so, when was it done and what is its value? Thank you in advance!
It's hard to say without seeing a photo, but the fact that the lists of low capacity in milliliters indicates this is probably not more than the 1970s.
Duquoin Schooling Show T2 Vintage Cup