Science Fair 30-in-1 Mechanical Lab Kit #28-257 Vintage Educational Building Set

1972 radio shack 10 in 1 Jr. Electronic Lab Kit Untested With Original Box Vtg

Radio Shack Science Fair Electronics Lab 200 One Project Kit 28-265 FOR PARTS

Science Fair 150 in 1 Electronic Project Kit 1976 Wooden 28-248

Vtg RadioShack Electronic Sensors lab Kit Electrical Learning Capacitors Wiring

Science Fair 150 in 1 Electronic Project Kit 1976 Wooden 28-248

Thames & Kosmos Hydropower Science Experiment Kit BRAND NEW OPEN BOX

Vintage 1972 65 in 1 Science Fair Electronics Project Kit Cat. No. 28-250