lot of vintage Opera News magazine 1973-4 14 issues in all, excellent condition

Here’s a nice collection of vintage issues of Opera News magazine from the 1970s.
These were published by the Metropolitan Opera Guild and are full color magazines with features and ads; each measures 11 by 8.5.”  The publication dates included are:
volume 37, 1973 numbers 9, 10, 11, 12, 13, 14, 15, and 16
volume 38, 1973 numbers 4, 7, 8, 9, and 26
volume 39, 1974 number 1
These include such highlights as Danny Kaye appearing at the Met and Grace Bumbry as Salome.  The ads and features are fascinating.  Please contact me if you have any questions – thanks!