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Main timeline of 2x4 mold versions (no complete overview)
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Slotted and hollow bricks
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The different logo's found inside slotted LEGO bricks
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Moving molds
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Danish slotted bricks
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1 - No Logo
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(1) - No Logo 2x2 with ghost slot
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Slotted brick without logo - estimating the possible number of mould cavities
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Photo from ''Plasticafdelingen''
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Slotted brick without logo, marbled
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Mystery brick
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(1) - No Logo - colors (my collection in Oct. 2014)
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Slotted bricks without logo - Danish color range
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Slotted bricks without logo
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Aging brick (slotted brick without logo)
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6 - Blockletter logo, rounded letters
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Marbled slotted brick with Blockletter logo (1/4)
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Marbled slotted brick with Blockletter logo (2/4)
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Marbled slotted brick with Blockletter logo (3/4)
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Marbled slotted brick with Blockletter logo (4/4)
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Marbled slotted bricks
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1953-55 LEGO dealer catalog insert - Plastic bricks
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1953-55 LEGO dealer catalog insert - Wooden car
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7 - Blockletter logo, flat letters
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(6 and 7) Comparing the rounded and flat logo
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Blockletter 2x3, 2x8, 2x10 mold
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Blockletter 2x3, 2x8, 2x10 mold (2)
