Cut Lead Crystal

These 11 pieces were bought as a group in the 80's at an estate auction. Stated as cut lead crystal, they are heavy.
The punch bowl weighs 7 lbs, and the stand weighs over 5 lbs.
The pitcher weighs almost 8 lbs.
The pitcher, punch bowl and stand appears to be a set, but not sure if any of the other pieces are. Some look to have similar markings.

All in excellent condition, no chips.
Was told it is authentic.
Might sell, just wondering what the value might be.

Thank you