Mid 20th C. Sylvania Replacement Parts Tube Caddy c&o The instrument features a cast

The instrument features a cast metal frame with precision adjustment controls

There is some wear consistent with age

Field held 17 shares of the Norwich & Worcester Railroad Co

a distinctive functional detail often used for draping mosquito netting or light fabric covers

This piece exhibits some rusting stains

Mid 20th C. Sylvania Replacement Parts Tube Caddy c&o The instrument features a castBlack textured tube caddy case marked "We Recommend Sylvania Replacement Parts Best For Any Set, " fitted with metal corner guards, latches, and carry handle. The folding interior trays reveal an extensive assortment of 400 boxed vacuum tubes from RCA, Sylvania, GE, Philco, and others, organized in grid fashion for service calls and bench work. Surface scuffs, edge wear, and oxidation to hardware present; tubes untested; contents included as found.