LP record first-year issue

Columbia records introduced the 33 1/3 rpm microgroove record pressed in vinylite , which they called the "LP" (for Long Playing) to the general public in June, 1948. Prior to this, virtually all commercial discs were at 78 rpm, 33 1/3 being mainly used for radio transcriptions, which made lower demands on sonic fidelity.

This is an LP from the first year such records were issued, handwritten on the sleeve is "xmas 1948- from Carl"

I've also included the full-page ad Columbia ran in "Life" magazine on October 11, 1948 about their new product.