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How the symbolism of BAR, 777 and fruit appeared
1) Before the "theme": mechanics and readability
The first automata of the turn of the XIX-XX centuries solved a simple problem: the symbol must be large, contrasting and fast for recognition on a rotating drum. Bells, horseshoes and card suits did not dominate because of "romance," but because of the availability of engraving and clarity from two meters. The sound of coins and the lever created a ritual, and the symbolism served as readability.
2) Laws and "legal prizes": from coins to fruit
At the beginning of the 20th century, restrictions on cash winnings appeared in many US states. Manufacturers responded with a find: the machines began to pay not money, but "commodity prizes" - chewing gum and sweets.
The logic was iron: if the prize is chewing gum, then the symbols on the drums should correspond to the taste and "commodity showcase." So cherries, lemons, plums, oranges, watermelons entered the game en masse. A number of lemons fell out - you will get lemon gum. The prize is "natural," and the mechanics of winning are the same.
Why the fruit stuck:- instantly recognizable in any light;
- look "safe" and non-moralizing;
- easily stylized by a large spot of color (important for printing on drums);
- are culturally universal - they are understood without translation.
3) Where "BAR" comes from: the logo that has become a symbol
The origins of "BAR" are in the brand plate of the chewing gum producer (classical history connects it with fruit companies of the beginning of the century). Rectangular logo dies were printed on the drums, and over time, the brand "plate" was generalized to the word BAR - a simple, thick rectangle with letters.
The symbol turned out to be perfect from a design point of view: a contrasting rectangle, readable at any rotation speed. Variations of Single/Double/Triple BAR were quickly added - a convenient gradation for pay tables and combinatorics.
4) Why "777" has become a good luck formula
The numbers on the drums appeared early: they are readable and universal. "7" is traditionally associated with luck in Western culture, so it is logical that the developers have fixed the triple coincidence of sevens as the rarest and "clean" jackpot in a series of simple combinations.
Then the mutual twisting of the value worked:- the pay table design supported "777" as the top floor of the award;
- advertisements and signage carried "777" into headlines;
- pop culture (songs, movies, neon) cemented the image of "three sevens = the main gain."
Why exactly three: the visual rhythm of the three drums and the mythology of the "triples" (beginning-middle-final) give a strong "final chord" of the combination.
5) How symbols worked together with mathematics
Fruits were more often used for small and medium payments: many small reinforcements = a feeling of a "live" machine.
BAR/Double/Triple BAR marked medium-high range: combinations are easier to read and scale in tables.
777 was fixed as a rare peak - visually and acoustically the loudest outcome.
So the visual hierarchy helped explain the probability without words: the "stricter" and more geometric the symbol, the higher the winning bar is usually.
6) From commodity prizes to money - symbols remain
When the cash payments returned, the iconography did not disappear. People have already "learned" the alphabet: fruit = friendly background, BAR = serious combination, 777 = climax. Brands and manufacturers did not change what works: recognition beats excessive novelty.
7) Migration to the video and online age
With video dialogs and HTML5, the characters survived the "redraw," but the semantics remained the same. Complex themes (Egypt, myths, licenses) have appeared, but fruit and BAR slots live like "classics of the genre," and "777" is the main character of banners and jackpot toppers. Even in advanced mechanics (cascades, cluster winnings), designers often leave the seven as a super event icon.
8) Sound and light: how the symbol memory was fixed
Fruits are accompanied by short "sweet" sounds (jin, arpeggio).
BAR - denser, "metal" clicks/fanfare.
777 - long fanfare with a pause, flashes around the perimeter, large typography.
These audio-visual anchors made the symbols part of the player's "muscle memory."
9) Geography and cultural undertones
Europe/USA: fruit sets, BAR, sevens - classic base.
Asia: "7" also reads like luck, but in places competes with "8" (prosperity); designers mix the codes neatly.
Localization: Shades of red/gold reinforce the theme of luck, but the rules of contrast and readability are always more important than "superstition."
10) Why the alphabet is still alive today
Zero comprehension threshold. The new player does not need to explain "what cherry is."
Read speed. BAR and 7 are recognized in a split second.
Legacy and nostalgia. Classics increase confidence and create an "honest" vibe.
Flexibility. Symbols are easily woven into new mechanics, bonuses and seasonal "skins."
11) Workshop for designers and studios
1. Silhouette> Parts. Check character recognition in 200-300 ms and in three sizes (cell/preview/banner).
2. Hierarchy without words. Fruits - light micro-awards; BAR - average; 777 is a rarity with motion picture animation.
3. Contrast and palette. Dark background, light symbol; avoid acid glare and strobe.
4. Sound leitmotifs. Different sound "alphabets" for small/medium/rare events.
5. Cliché-free localization. Respect local symbolism (7/8), but don't sacrifice readability.
12) Short time line
Early automata: bells/suits - utilitarian readability.
Prohibitions and "product prizes": fruits and branded dies → "BAR."
Jackpot codification: "777" as the top rung of pay tables.
Video/online: redrawing but preserving semantics; "classics" becomes a genre.
Today: Symbols are part of a global visual dictionary that works in any mechanics.
Fruits, "BAR" and "777" were born out of design pragmatics and legal tricks, and became a universal alphabet of luck. They survived the change of technology, laws and screens, because they do the main job of visual language - quickly and honestly explain the outcome. While slots need instant clarity and a sense of celebration, this trio will remain on the drums - in one style or another.