Object consists of divided box with eight samples of SLT modules in different stages of manufacture. Lables on top read from left to right, top to bottom: "BARE SUBSTRATES" "PRINT LAND PATTERN" "SCREEN AND FIRE RESISTOR PATTERN" "INSERT PINS" "SOLDER PINS AND LANDS" "TAILOR RESISTORS" "JOIN ACTIVE COMPONENTS" and "OVERCOAT AND MARK". Additional label on upper left of box reads, "IBM CONFIDENTAL". Display shows very early SLT module with red overcoat instead of later aluminum cap.