Education Through Music-Los Angeles - On June 21, 1948, the 12-inch LP 33 1/3 rpm microgroove record album was introduced by Columbia Record Company in New York City. • • • #musicmakesmylifebetter #recordsarecool | Facebook
![Columbia Records Ad for the New Microgroove Single-Featuring Dinah Shore (February 1949) | Columbia records, Dinah shore, Dinah Columbia Records Ad for the New Microgroove Single-Featuring Dinah Shore (February 1949) | Columbia records, Dinah shore, Dinah](https://i.pinimg.com/736x/4d/8b/2f/4d8b2f9399f68387e3c6f3d9ae45b5e4--columbia-records-book-jacket.jpg)
Columbia Records Ad for the New Microgroove Single-Featuring Dinah Shore (February 1949) | Columbia records, Dinah shore, Dinah
![Columbia Long Playing Microgroove Records, a Complete Listing of all 10- and 12-inch Microgroove Records Through August 1949 Plus Complete 7-inch Microgrove Record Listing Columbia Long Playing Microgroove Records, a Complete Listing of all 10- and 12-inch Microgroove Records Through August 1949 Plus Complete 7-inch Microgrove Record Listing](https://d3525k1ryd2155.cloudfront.net/h/154/489/633489154.0.x.jpg)