The perforations of a stamp formed by the pins of the perforating machine which are arranged like a comb.

Later that year, Lambert and Stamp formed a record label, Track Records, with distribution by Polydor.

In 1927, with J. R. Baxter, Stamps formed the Stamps-Baxter Music Company, based in Dallas, Texas.

In the 1930s Stamp formed the Land Utilisation Survey of Britain, a major project to survey of the whole country using volunteers including colleagues, students, school teachers and pupils, on a scale of 6 inches to a mile.