Gene Autry's Greatest Hits

1. The Block Allocation of the "51000" Series (Late 1960) Columbia master tape numbers were assigned sequentially, one after another, as albums were prepped for production. Master tape blocks in the 49000s belong to late 1959/early 1960 releases.Master tape blocks in the 51000s (like your 51134 and 51135) were specifically processed, registered, and assigned to the cutting lathes in the fall of 1960 to prepare for winter holiday releases. 2. The Strict Meaning of "-1C" The suffix tells us exactly which stage of production your physical record came from. Columbia used numbers for the master tape mix and letters for the lacquer cutting. The "1" (Tape Generation): This proves the record was pressed using the very first master tape mix sent to the cutting room. If this were a reissue from a few years later, the number would have moved to a -2, -3, or have an RE (re-master) tracking code. The "C" (The Cutting/Stamper Chronology): Columbia engineers used a letter-rotation system for their cutting lathes. The first lacquer cut was assigned A, the second B, and the third C. Because a single metal stamper mold can only press a few thousand records before the grooves wear down, a "C" stamp means this record was pressed using the 3rd physical mold ever created for this album. 3. Why it Can't Be a Later Pressing If Columbia wanted to press more copies of Gene Autry's Greatest Hits in 1961, 1962, or later, they would have had to cut new lacquers, shifting the matrix code forward into much later letters (like -1K, -1L, or into two-letter codes like -1AA). 4. The "CBS Overprint" Six-Eye (1961–1962) Toward the very end of the 6-Eye design's lifespan, Columbia began inserting a small "CBS" text block at the top center of the label. Mono Labels: "CBS" was printed in small black letters directly under the main "COLUMBIA" heading.Stereo Labels: "CBS" was placed directly in the center of the black-and-white arrows at the top. [1] Because this Gene Autry promo copy does not feature this CBS text block, it serves as physical proof that the record was manufactured prior to this late-1961 design adjustment, firmly anchoring it to its late-1960 release window. Furthermore, because this is a radio station promo featuring the factory-printed "6-Eye" design with the silver text, it had to be printed during the initial promotional push before the album hit stores in December 1960 / January 1961. Radio promos were never repressed years down the line; they were only made once right before launch to get radio airplay. The matrix numbers are crisp, machine-stamped font and the ultimate confirmation of its authenticity. This detail tells us exactly which factory pressed this record. During the 1960 holiday season, Columbia used mechanical stamping machines exclusively at its primary East Coast pressing plant in Bridgeport, Connecticut.