515-2 Building Set was a 31 piece Duplo set released in 1973. It was a pre-school set.

Sets in Duplo / Building Sets

Theme / Subtheme Duplo / Building Sets
Year 1975
Pieces 640
Availability Retired
521-8 LEGO Duplo Bricks and Half Bricks All Colors
Retail $3.99
Value $35.68
Growth 794.2%
Annual growth 4.8%
Theme / Subtheme Duplo / Building Sets
Year 1975
Pieces 240
Availability Retired
519-8 LEGO Duplo Bricks and Half Bricks And Arches and Trolley
Retail $2.25
Value $20.12
Growth 794.2%
Annual growth 4.8%
Theme / Subtheme Duplo / Building Sets
Year 1975
Pieces 168
Availability Retired
520-9 LEGO Duplo Bricks and Half Bricks And Two Tolleys
Retail $2.89
Value $25.84
Growth 794.1%
Annual growth 4.8%
Theme / Subtheme Duplo / Building Sets
Year 1975
Pieces 121
Availability Retired
517 LEGO Duplo Bricks and Half Bricks And Arches
Retail $1.49
Value $40.00
Growth 2584.6%
Annual growth 5.1%
Theme / Subtheme Duplo / Building Sets
Year 1973
Pieces 29
Availability Retired
030-2 LEGO Duplo Building Set
Theme / Subtheme Duplo / Building Sets
Year 1973
Pieces 25
Availability Retired
020-2 LEGO Duplo Building Set
Theme / Subtheme Duplo / Building Sets
Year 1975
Pieces 20
Availability Retired
516 LEGO Duplo Bricks and Half Bricks
Retail $1.25
Value $11.18
Growth 794.4%
Annual growth 4.8%
Theme / Subtheme Duplo / Building Sets
Year 1972
Pieces 17
Availability Retired
514 LEGO Duplo Pre-School Building Set
Theme / Subtheme Duplo / Building Sets
Year 1975
Pieces 17
Availability Retired
518-8 LEGO Duplo Bricks and Half Bricks And Trolley
Retail $1.49
Value $13.32
Growth 794.0%
Annual growth 4.8%