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21 was produced by Williams Electronic Mfg. Co. (1958-1967) in 1960.

Williams Electronic Mfg. Co. (1958-1967) released 119 machines in our database under this trade name, starting in 1958. Williams Electronic Mfg. Co. (1958-1967) was based in United States.

Other machines made by Williams Electronic Mfg. Co. (1958-1967) during the time period 21 was produced include: Vanguard, Crossword, Rocket, Sea Wolf, Space Glider, Music Man, Darts, Jungle, Official Baseball, and Magic Clock


Name 21
Developer Williams Electronic Mfg. Co. (1958-1967) (United States)
Year 1960
Type Pinball
KLOV/MOG # 173
Sub-Type Electro-Mechanical
# Maximum Players 1
Cabinet Styles
  • Upright/Standard

21 KLOV/IAM 5 Point User Score: 0.00 (0 votes)

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VAPS Arcade/Coin-Op 21 Census

There are 14,955 members of the Vintage Arcade Preservation Society, 9,548 whom participate in our arcade census project of games owned, wanted, or for sale. Census data currently includes 165,348 machines (6,939 unique titles).

Owned - There is one known instance of this machine owned by an active member 21 collector. It is an original dedicated machine (not another machine converted with a kit).

For Sale - There is one active VAPS member with a 21 machine for sale.

Wanted - No active members have added this machine to their wish list.

Rarity and Popularity independently are not necessarily indications of value. [More Information]

Foto-Finder® (Books)

  1. Pinball An Illustrated History Colmer (ISBN 0451799666) Page: 105; Black and white photo Price guide: No
  2. The 1993 Pinball Price Guide Bieza (ISBN ) Page: 48; Black and white photo
  3. Pinball Compendium : 1930s - 1960s Shalhoub (ISBN 0764315277) Page: 121; Color photo

Foto-Finder® (Billboard)

  1. February 15, 1960 - Page: 76

Additional References (logged in members often see more)

eBay Listings

Click to search eBay for 21 Pinball machines and related items.

Click to search eBay for Williams Electronic Mfg. Co. (1958-1967) for machines and parts.

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Ebay Compatible Application

Gottlieb Original Assorted SCORE CARDS-21 cards

Auction ends in: 4 weeks, 9 hours


Bally Six Digit Pinball Display. M-645-92. AS-2518-21. Used Untested.

Auction ends in: 3 weeks, 3 days


21-50002 Game Plan Pinball Coil (Flipper)

Auction ends in: 2 weeks, 2 days


S-100 Compupro RAM 21 Memory Board. Pulled from a working system.

Auction ends in: 1 month, 3 hours


Auction Results

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Auctions Recap

Year Count Median $ Average $
2014 1 94.40 94.40
All Years 1 94.40 94.40


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