Uhura's boots are unique to the character and have been factory reproduced by Doctor Mego. The repro boots are a little shorter, the plastic itself is a little thicker, and overall more glossy in appearance. The repro's are stamped DM on the bottom.
Star Trek crew figures have a 2 layered emblem. It's a gray plastic type material with a silver foil on the top. The foil tends to fall off over time leaving the gray part of the original emblem. A complete emblem should have the silver foil. The emblem has not been factory reproduced. The emblem has produced by Emce Toys on their Kirk reproduction shirt. See the Kirk Accessory Check page for details. Uhura's will be updated when Emce releases the figure with the emblem on a red dress.
Spock, McCoy and Uhura all sport the same tricorder. The blue plastic on the originals can take on a greenish hue over time. The tricorder has been factory reproduced by EMCE Toys. The reproduction has a slightly different shape for the unit itself. More rounded around the top corners, where the top "corners" on the original are flat, creating 6 distict sides. The details on the face of the original are raised, where the opposite is true on the reproduction. EMCE's details are recessed. An original will also have the number 7 imprinted on the back (the repro doesn't have this), and the repro is made of a more brittle plastic so the strap breaks easier. The EMCE version is unmarked. What can be confusing about this is the repro phaser has a 7 on the handle and the original does not, but the repro tricorder is unmarked while the original has a 7 printed on the backside. Bascially what that means is the 7 mark does not mean repro on all Trek items.