I decided to start this thread following the purchase and subsequent limelight of my Top Toys silicone mold of chewie's torso. There were many of my fellow collectors asking a lot of questions surrounding the pre-production process and prototypes in general.
The thread is designed to show the collecting community the wide variety of prototype and pre-production items that are available for the entire vintage Star Wars figure line. It is also intended that this thread will grow by other collectors here on the forum being prepared to share any items that they may have.
Please note - items added to this thread may have changed hands. If you are the new owner and do not want it listed here then please contact a Moderator.
Moderator's note: Big thanks to Steve for starting this thread. Unfortunately he is no longer able to update the index, so the TIG Moderators will be taking on this task. Please continue to add your photos and discussion in the thread and we will update the index with thumbnail versions of the photos. We've also added a new part to the index where you can include non character items such as vehicle/playset packaging, three packs, etc.
Thanks! - TIG ModeratorsCharacter related prototypes/preproductionAdmiral Ackbar
Admiral Ackbar Hardcopy
Anakin Skywalker
Anakin Skywalker Charcoal Robes First Shot
AT-AT Driver
AT-AT Driver ESB 45 Back
Ben (Obi Wan) Kenobi

1st shot Ben with early translucent DT saber
Ben Kenobi ESB 47 back
Biker Scout

Biker Scout Cromalin
Biker Scout ROTJ 65 Back A Proof
Biker Scout ROTJ 65 Back B Proof - Revenge Transition on Rear
Boba Fett

Boba Fett 41 back Survival Offer Moc Quality Control sample
Boba Fett Revenge Proof
Bossk

Bossk ESB 31 Back
Bossk ESB 45 Back
C-3PO


C-3PO Lili Ledy Proof Card
C-3PO ESB 45 Back
C-3PO POTF Proof
C-3PO POTF Proof Cut From Sheet Front
C-3PO POTF Proof Cut From Sheet Back
C-3PO Pre Production 'Rusty' Coloured 12 Inch Figure
Chewbacca

Top Toys Hardcopy
First shot with weapon
Top Toys Silicone Molds - Chewbacca Torso
Top Toys Silicone Molds - Chewbacca Legs
Top Toys Steel Molds - Chewbacca Limbs
Chewbacca Signed Sample - Made in Macau
Chewbacca Bandolier Strap Proof
Chewbacca Bandolier Strap Cromalin
Chewbacca ESB 31 Back Proof
Chewbacca ESB 45 Back Proof
Chewbacca ROTJ 65 Back Proof
Chewbacca SW Proof (Blank Back and Square Corners)
Chewbacca Revenge Proof
Chewbacca First Shot
Chewbacca Proof Rounded Corners Non Blank Back
Chief Chirpa
Chief Chirpa Lili Ledy Mold Purge

Descriptions to follow
Darth Vader

Darth Vader Lili Ledy Proof Card
Darth Vader Unproduced Mock Up First Shot
Death Squad Commander
Death Squad Commander First Shot
Death Star Droid
Death Star Droid First shot
Dengar

Dengar Revenge Of The Jedi proof
More descriptions to follow
Emperor
Emperor First Shot
EV-9D9
EV-9D9 POTF Proof Cut From Sheet
FX-7

FX-7 unpainted First Shot
FX-7 ESB 45 Back
General Madine
General Madine Mock Up on 47 Back Snaggletooth Card
Greedo

Greedo First Shot
Greedo ESB SK Offer 41 Back
Hammerhead

Hammerhead ESB 21 Back
Hammerhead First Shot front
Hammerhead First Shot back
Hamerhead First Shot showing hand painted eyes
Hammerhead First Shot (left) comparison with production version (right)
Hammerhead First Shot possible stress test showing damaged foot
Han Solo Bespin

Han Bespin POTF Cromalin
Han Bespin ROTJ Cromalin
Han Bespin Revenge Cromalin
Han Bespin ROTJ 65 Back
Han Bespin Revenge 48 Back
Han Bespin ESB 48 Back Offerless
Han Bespin ESB 47 Back 4-LOM Offer
Han Bespin ESB 45 Back With Colour Bars
Han Bespin ESB 45 Back
Han Bespin ESB 45 Back QC Moc
Han Bespin ESB 41 Back SK Offer QC Moc
Han Solo Hoth
Han Solo Hoth First Shot
Han Hoth Head Pull
Han Hoth Revenge Proof
Imperial Commander
Imperial Commander Head Pull Test With Production Limbs
Jawa
Jawa ESB 31 Back
KlaatuNo Prototype or pre-production items submitted
Lando Calrissian

Lando Calrissian First Shot with Wax Sculpt
Lando Calrissian First Shot x2 pics
Lando Calrissian Wax Sculpt details x5 pics
Lobot
Lobot ESB Offerless 48 Back
Luke Skywalker (Bespin)

First Shot Luke Bespin
Luke Skywalker (Farmboy)

Luke FB varous items
Luke Farmboy Engineering Pilot with Engineering Pilot saber
Luke Farmboy Engineering Pilot
Luke Farmboy Engineering Pilot with number '16' on underside of foot
Luke Farmboy Engineering Pilot saber
Luke Farmboy Engineering Pilot saber
Luke Skywalker (Jedi Knight)

Luke Jedi Kenner 65 Back A Proof Card
Luke Jedi Reference Photo
Luke Jedi Protomold
Luke Jedi First Shot Head Pull Test
Luke Skywalker Hoth
Luke Skywalker Hoth ESB 45 Back
Luke Skywalker (X Wing Pilot)

Luke Skywalker X-Wing Pilot unpainted First Shot Head (1st pic displayed on Kenner production figure).
Luke Skywalker X-Wing Pilot / Jedi Knight Prototype coin.
Luke Skywalker X-Wing Pilot head pull safety test piece and 1st shot leg.
Power Droid

Power Droid ESB 21 Back
Power Droid ESB 45 Back
Power Droid 20 Back proof
Power Droid Protomold (x7 photos) - pictured on the right of all photos next to a Kenner example on left.
Princess Leia Organa

Princess Leia Organa Engineering Pilot
Princess Leia Organa 12 back Cromalin + 12 back blank back Proof Card + Non Sonic Welded Hand Painted First Shot with Round Footholes
Princess Leia Organa Non Sonic Welded Hand Painted First Shot with Round Footholes
Princess Leia Hoth
Princess Leia Hoth First Shot hand painted boots
Princess Leia Bespin
Princess Leia Bespin Revenge Proof
Princess Leia Poncho

Description to follow
Princess Leia Boushh
Princess Leia Boushh Unpainted Dark Brown Torso First Shot
Pruneface
Pruneface bagged First Shot yellow eyes
R2-D2

R2D2 POTF Proof
R2D2 Engineering Pilot (x2 photos)
R5-D4
R5D4 ESB SK Offer 41 Back
Rebel Commander
Rebel Commander Hardcopy
Rebel Commando

Rebel Commando 65 Back A Proof
Rebel Commando POTF Proof
Rebel Commando POTF Cromalin
Rebel Commando Paint Application Blueprint
Rebel Commando Unpainted Hardcopy Head and Hand Painted Protomold Figure
Rebel Commando Unpainted Protomold figure
Rebel Commando 35mm slide
Rebel Commando 35mm photo art slide
Rebel Commando 8x10 transparency
Rebel Commando Internal Weapons Transparency
ReeYees
ReeYees mock up on ESB Zuckuss card
Romba
Romba Dark Brown First Shot
Sand People (Tusken Raider)

Sand People ESB 45 Back
Sand People First Shot (x4 pictures) This is a First Shot that was hand painted and glued together at Kenner.
Snaggletooth

First Shot Blue Snaggletooth
Snaggletooth ESB 21 Back
Snaggletooth ESB 31 Back
Snaggletooth ESB SK Offer 41 Back
Snaggletooth 20 Back Proof
Stormtrooper

SW 12 back Stormtrooper proof
ESB 21 back Stormtrooper secret offer
ESB 31 back Stormtrooper proof
ESB 45 back Stormtrooper with display arena
ROTJ 65 back Stormtrooper sample card
Stormtrooper Revenge Of The Jedi proof
Stormtrooper ESB 45 Back Two-Colour Printer's Proof. One Sided. Yellow and Blue.
Stormtrooper ESB 45 Back Two-Colour Printer's Proof. One Sided. Red and Blue.
Stormtrooper ESB 45 Back All-Colour Printer's Proof. One Sided. Yellow, Red and Blue.

Kenner Stormtrooper unpainted non-sonic welded First Shot
Kenner Sormtrooper no coo painted First Shot
Kenner Stormtrooper engineering pilot with numbered feet
Kenner black and yellow Stormtrooper First Shot

TopToys Stormtrooper hard copy
TopToys Stormtrooper sample card mock up
TopToys Stormtrooper silicon mold

POTF Stormtrooper coin original sculpt
POTF Stormtrooper coin Stage 1 hard copy
POTF Stormtrooper coin soft copy (or rubber)

4ups unpainted dynecast Stormtrooper Bespin Freeze 1
Stormtrooper Bespin Freeze 2
Stormtrooper Death Star Escape
Stormtrooper Death Star Compactor
Ugnaught
Ugnaught 48 Back Revenge Offer
Walrus Man
First Shot Walrusman
Yoda


Top Toys Yoda Snake Silicone Mold
Top Toys Yoda Snake Silicone Mold
Yoda ESB 45 Back
Other Prototype Items Jabba the Hutt

Pre Production Jabba.

First Shot Jabba head.
TOPPS TRADING CARDS
Topps Burger King Stormtrooper Card. Blue and Red Separation Printing proofs.
12 INCH DOLLS

12 INCH BOBA FETT FIRST SHOT
VEHICLES
AT-AT Revenge Proof.

INT-4 Rebate Cromalin

Revenge Of The Jedi Millenium Falcon proof

Endor Forest Ranger Marked Cromalin

Skiff Reference Photo
Other stuffRevenge Force Lightsaber
Revenge Force Lightsaber Display Proof Sheet
Three packs

Kenner Employee Prototype Android Set

Series 1 Unproduced Prototype Box Flat

Series 1 Prototype empty box

ESB white prototype test package Rebel set

ESB Series 2 Bespin Set 3 pack Quality Control sample
Logo Concepts

The Force Forever (one of a kind logo concept) originated from Tom N
Useful Websites for prototype and pre-production informationWrite up on figure manufacturing process by ChrisGSWCA write up on prototypes