Now here is an enamel sign that rarely turns up. Three in One Oil with 4 images showing where those precious drops of oil could be used.
1.A sewing machine (penetrates)
2. A typewriter (lubricates)
3. A bench drill (prevents rust)
4. A pair of guns (cleans & polishes)
This sign is showing its age (late 30’s) with some chips & fading but its still a lovely thing.