Vintage school wooden lab test tube holder with 2 glass test tubes

Vintage school wooden lab test tube holder with 2 glass test tubes. English, circa 1970s. Originally from a school lab or college. Size of rack: 9.25 x 3 x 4.5 inches. Size of test tubes: 6 inches tall; 0.75 inch diameter. Combined weight: 201g (allow 1 kg once packed). Reasonable vintage condition - some cracks in base of rack across apertures but otherwise ok. Priced accordingly.