This is an original AdvertisementMASTER that all the magazine ads and brochures were made from! This one is from 1979. It is very rare and unique part of Bob Carver History! I bought these from the actual photographer who worked with Bob Carver and the Phase Linear Crew in the late seventies. I can give you his email to verify if you like...This oneis about an1/8" thick. I have MANY other Phase Linear Items on my eCRATER Store, please check them out. I will be posting new ones over the next few days. I have manuals, Ads, Brochures, etc...THANKS!-Check out my eCRATER Store for THOUSANDS more Ads, Reviews, and Brochuresrelating to Audio. I have EVERY major audio brand from the last 50 years! Type in any brand name in my SEARCH bar on the left side ofmy Store home page.-These Ads and Reviews have been APPRECIATING over the years, on average about 10% per year. They don't make any more of them! Once they are gone, they are gone! Some are over 50 years old!-Ready for framing and put on your wall! 100% original, no copies or reproductions. - I ship Worldwide! Shipping is $3 in USA,$6 elsewhere. -These ads look great framed or put in a binder, they can also add value when selling your equipment as many of them have specs and details about the audio equipment! -Please email for any questions. Check out my eCRATER Store, ELECTRONICS ARCHIVES, for many more vintage ads!-Shipping discounts are given for additional items, It is $3 for your first item in USA,$6 international, then just $1 for each additional item! -Allthese ads are 100% ORIGINAL! They are from the year they are listed as. We also have a REPRINTS section if you are interested in them.-Satisfaction guaranteed! THANKS! ELECTRONICS ARCHIVES Powered by eCRATER . List your items fast and easy and manage your active items.