Vintage 1930's Edison Radio Advertising Poster "Light-O-Matic"

Description

48 1/4" x 12"
Advertising poster for the Edison Company's R-6 and later R-7 flagship radios.
Highly collectible piece of audio history
"Come in an hear it " the sign says.  It would have been a window display.  The crimson  light flashes coming from the radio's  display are shown on the poster.
Please assess photos and read description of condition.
Vintage items are sold 'as-found'.  This is from the 1930's and is in good shape for its age.
Item will be packed carefully and shipped promptly upon purchase.
The R-6 was Edison's top of the line set in 1930 selling for 7 > (without tubes). The set featured 'light-o-matic' tuning (as did the > '29 models). After tuning in your favorite station, you turned the > a small switch near the dial (with a special 'light-o-matic' key - > these are very difficult to find) which activated a plunger which > embossed a thin copper disc that rotates with the dial mechanism. The > next time you tuned in the station, the dial would display a 'flash of > crimson light'. The 1930 sets used three '24s, three '27s, two '45s > and one '80 tube.