Pye type, bright chromium plated, set of 8, in velvet case, tested accurate, Grade A

After Rag's design, blue steel set of 8, in velvet case, tested accurate, superior

Welch type, large size, bright chromium plated, set of 8, in velvet case

Set of 8 Routine quality

Welch type, massive, special quality tested very accurate, in superior velvet lined/wooden case (Extra Heavy)

INCO type, can be used in vertical or horizontal position with electrically maintained tuning forks, silk cord, pulley, stand and scale pan but without weights

Workable on 230 volts A.C., mounted on nicely polished wooden box

Simple form, comprising of a Tuning Fork mounted on G clamp with adjustable pulley, stand, silk cord, scale pan and hammer.

For Melde's Apparatus 762 A