In 1966, LEGO released 72 Classic Supplemental sets, all of these sets have been retired.
Most valuable 1966 LEGO Classic Supplemental set
710-2 Lockable Storage Case $244.34
Highest growth 1966 Classic Supplemental set
493-2 European Flags +48282.00%
Largest 1966 LEGO Classic Supplemental set
471 Tiles 52 pieces
Most owned 1966 Classic Supplemental set
401-2 Large Wheels with Axles
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 12
Availability Retired
400-3 LEGO Small Wheels with Axles
Retail $0.75
Value $31.22
Growth  4062.7%
Annual growth 5.4%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 7
Availability Retired
401-2 LEGO Large Wheels with Axles
Retail $0.50
Value $16.88
Growth  3276.0%
Annual growth 5.0%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 5
Availability Retired
402-3 LEGO White Turntables
Retail $0.50
Value $26.35
Growth  5170.0%
Annual growth 5.8%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 12
Availability Retired
403-3 LEGO Train Couplers and Wheels
Retail $0.50
Value $13.28
Growth  2556.0%
Annual growth 4.6%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 10
Availability Retired
414-3 LEGO Windows Parts Pack Red
Retail $0.50
Value $41.02
Growth  8104.0%
Annual growth 6.6%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 10
Availability Retired
414-4 LEGO Windows Parts Pack White
Retail $0.50
Value $34.58
Growth  6816.0%
Annual growth 6.3%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 10
Availability Retired
414-5 LEGO Windows Parts Pack Red
Retail $0.50
Value $32.25
Growth  6350.0%
Annual growth 6.2%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 10
Availability Retired
414-6 LEGO Windows Parts Pack White
Retail $0.50
Value $11.34
Growth  2168.0%
Annual growth 4.3%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 9
Availability Retired
415 LEGO 5 Sixteens and 4 Twenties
Retail $0.50
Value $20.00
Growth  3900.0%
Annual growth 5.3%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 6
Availability Retired
416 LEGO 4 Sixteens 2 Twenties
Retail $0.50
Value $18.68
Growth  3636.0%
Annual growth 5.2%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 5
Availability Retired
417-3 LEGO Cornerbricks
Retail $0.50
Value $20.00
Growth  3900.0%
Annual growth 5.3%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 10
Availability Retired
417-4 LEGO Cornerbricks
Retail $0.50
Value $33.37
Growth  6574.0%
Annual growth 6.2%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 13
Availability Retired
418-2 LEGO 2x4 Bricks
Retail $0.50
Value $20.00
Growth  3900.0%
Annual growth 5.3%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 21
Availability Retired
418-3 LEGO 2x4 Bricks
Retail $0.50
Value $37.07
Growth  7314.0%
Annual growth 6.4%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 15
Availability Retired
419-2 LEGO 2x3 Bricks
Retail $0.50
Value $20.00
Growth  3900.0%
Annual growth 5.3%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 25
Availability Retired
419-3 LEGO 2x3 Bricks
Retail $0.50
Value $30.59
Growth  6018.0%
Annual growth 3.8%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 20
Availability Retired
420-3 LEGO 2x2 Bricks
Retail $0.50
Value $19.50
Growth  3800.0%
Annual growth 5.3%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 33
Availability Retired
420-4 LEGO 2x2 Bricks
Value $21.78
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 44
Availability Retired
421 LEGO 1x2 Bricks
Retail $0.50
Value $21.07
Growth  4114.0%
Annual growth 2.7%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 20
Availability Retired
421-2 LEGO 2 Eights 2 Sixes 2 Fours 8 Twos 6 Ones
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 28
Availability Retired
422 LEGO 1x1, 1x2, 1x4, 1x6, 1x8 Bricks
Retail $0.50
Value $18.37
Growth  3574.0%
Annual growth 5.2%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 28
Availability Retired
423-3 LEGO Curved and Round Bricks
Retail $0.50
Value $27.83
Growth  5466.0%
Annual growth 5.9%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 50
Availability Retired
423-4 LEGO Curved and Round Bricks
Retail $0.50
Value $40.29
Growth  7958.0%
Annual growth 5.8%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 7
Availability Retired
426 LEGO 7 Named Beams
Retail $0.50
Value $47.57
Growth  9414.0%
Annual growth 6.9%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 8
Availability Retired
427 LEGO 8 Pieces 2x8
Retail $0.50
Value $107.77
Growth  21454.0%
Annual growth 8.4%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 5
Availability Retired
428 LEGO 5 Plates 4x8
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 4
Availability Retired
429 LEGO 4 Plates 6x8
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 6
Availability Retired
430-2 LEGO Six Trees and Bushes
Retail $0.50
Value $38.38
Growth  7576.0%
Annual growth 6.5%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 13
Availability Retired
431 LEGO Gas Station
Retail $0.50
Value $40.28
Growth  7956.0%
Annual growth 6.6%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 8
Availability Retired
432 LEGO Road Signs
Retail $0.50
Value $37.92
Growth  7484.0%
Annual growth 6.5%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 6
Availability Retired
433 LEGO 6 Street Lamps with Curved Top
Retail $0.50
Value $110.16
Growth  21932.0%
Annual growth 10.6%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 50
Availability Retired
434 LEGO 50 Lettered Bricks
Retail $0.50
Value $48.82
Growth  9664.0%
Annual growth 6.9%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 3
Availability Retired
435-2 LEGO Garage Plate and Door
Retail $0.50
Value $44.61
Growth  8822.0%
Annual growth 6.8%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 50
Availability Retired
437 LEGO 50 Numbered Bricks
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 3
Availability Retired
445-2 LEGO Lighting Device Pack
Retail $0.50
Value $79.31
Growth  15762.0%
Annual growth 7.8%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 6
Availability Retired
451 LEGO 1x6x3 Windows Red or White
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 8
Availability Retired
452-2 LEGO 1x6x2 Windows Red or White
Retail $0.50
Value $76.59
Growth  15218.0%
Annual growth 7.8%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 8
Availability Retired
453-2 LEGO 1x6x2 Shuttered Windows Red or White
Retail $0.50
Value $95.00
Growth  18900.0%
Annual growth 8.2%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 9
Availability Retired
454-2 LEGO 1x4x2 Windows Red or White
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 12
Availability Retired
455-2 LEGO 1x3x2 Window, Red or White
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 15
Availability Retired
456-2 LEGO 1x2x2 Window, Red or White
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 19
Availability Retired
457 LEGO 1x1x2 Windows Red or White
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 19
Availability Retired
458 LEGO 1x2x1 Window, Red or White
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 20
Availability Retired
459 LEGO 1x1x1 Windows Red or White
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 13
Availability Retired
460-2 LEGO 1x2x3 Door, Red or White
Retail $0.50
Theme / Subtheme Classic / Supplemental
Year 1966
Availability Retired
461 LEGO Windows and Doors, Retailer Pack
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 16
Availability Retired
462-2 LEGO 2x8 White Plates
Retail $0.50
Value $11.34
Growth  2168.0%
Annual growth 4.3%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 8
Availability Retired
463 LEGO 4x8 White Plates
Retail $0.50
Value $32.25
Growth  6350.0%
Annual growth 6.2%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 6
Availability Retired
464 LEGO 6x8 White Plates
Retail $0.50
Value $24.97
Growth  4894.0%
Annual growth 5.6%
Theme / Subtheme Classic / Supplemental
Year 1966
Pieces 39
Availability Retired
470 LEGO 1x1, 1x2, 2x2, 2x3, 2x4 Plates
Retail $0.50
Value $50.80
Growth  10060.0%
Annual growth 5.5%
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