Proto to production differences 
Prototype PF

Copyright reads 
1992 Williams Electronic Games Inc.
PF is a Lenc Smith field (LS)
[640x480] [2048x1536]
Prototype PF

Copyright reads
1992 Williams Electronic Games Inc.
PF is a Lenc Smith field (LS)
Viewed: 539 times.

Production PF

Copyright reads
1992 Midway Manufacturing Company
Manufacturer of Bally/Midway Amusement Games
All Rights Reserved
PF is a Sun Process field (SP)
[640x480] [2048x1536]
Production PF

Copyright reads
1992 Midway Manufacturing Company
Manufacturer of Bally/Midway Amusement Games
All Rights Reserved
PF is a Sun Process field (SP)
Viewed: 492 times.

Production Playfield

Note the white KISS inserts, along with the black artwork behind both ramp entrances.
[640x480] [2048x1536]
Production Playfield

Note the white KISS inserts, along with the black artwork behind both ramp entrances.
Viewed: 486 times.

Prototype Playfield

Note red KISS inserts, and artwork stops behind ramp entrances showing bare wood.
[640x480] [2048x1536]
Prototype Playfield

Note red KISS inserts, and artwork stops behind ramp entrances showing bare wood.
Viewed: 504 times.

Prototype Playfield

10 and 20 awards do not have MILLION screened in stripe underneath.
[480x640] [1536x2048]
Prototype Playfield

10 and 20 awards do not have MILLION screened in stripe underneath.
Viewed: 481 times.

Production Playfield

10 and 20 awards have MILLION screened in stripe underneath.
[480x640] [1536x2048]
Production Playfield

10 and 20 awards have MILLION screened in stripe underneath.
Viewed: 458 times.

Production PF

Diamondplate Logo
[640x480] [2048x1536]
Production PF

Diamondplate Logo
Viewed: 475 times.

Prototype PF

Diamondplate logo

This is a regular (non-hot) pink playfield. During the production run, regular pink playfields did not have the diamondplate logo.

Also, note the circular marks underneath the slingshot are missing. Perhaps those were added later to help align mylar?
[640x480] [2048x1536]
Prototype PF

Diamondplate logo

This is a regular (non-hot) pink playfield. During the production run, regular pink playfields did not have the diamondplate logo.

Also, note the circular marks underneath the slingshot are missing. Perhaps those were added later to help align mylar?
Viewed: 561 times.

Now, let's look at some ramps. This is a NOS WMS ramp, still sealed on the cardboard.
[640x425] [4288x2848]
Now, let's look at some ramps. This is a NOS WMS ramp, still sealed on the cardboard.
Viewed: 258 times.

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