Collectible Stereo Columbias are the SAX series. These can be worth up to £200 (and very occasionally more), if the label is silver and blue. The violinist Leonid Kogan is particularly sought after on this label commanding prices of up to £800.
We will pay up to £2,500 for a single disc on the columbia SAX label (left). First issues are blue & silver and are the most desirable. Later labels are red and can themselves command quite high prices.