Star Trek: Deep Space Nine, Oversize Special Effects Isolinear Chips

original movie prop

In sixth season episode One Little Ship, these oversized isolinear chips were used in forced perspective shots in which the miniaturized O'Brien and Bashir surreptititiously try to rewire the still normal-size Defiant's warp drive encryption subprocessors, after the ship is captured by Jem'Hadar soldiers.

Solid acrylic with screen printed circuit patterns on both sides. Shown here with a normal size screen-used TNG chip.

From Propworx and the collection of Doug Drexler.