9805 Duplo Play Wall was a 4 piece Education set released in 1999.

Sets in Education

Theme Education
Year 1999
Pieces 172
Availability Retired
9301 LEGO Education Traffic Signs
Retail $25.25
Value $371.80
Growth 1372.5%
Annual growth 15.9%
Theme Education
Year 1999
Pieces 168
Availability Retired
9533 LEGO Education Numbers Set
Retail $42.75
Value $113.79
Growth 166.2%
Annual growth 4.4%
Theme Education
Year 1999
Pieces 144
Availability Retired
9065 LEGO Education Brick Bulk Set
Retail $30.25
Theme Education
Year 1999
Pieces 1
Availability Retired
9912 LEGO Education Solar Cell
Retail $34.99
Theme Education
Year 1999
Pieces 1
Availability Retired
9916 LEGO Education Capacitor
Retail $14.99
Value $28.00
Growth 86.8%
Annual growth 3.9%
Theme Education
Year 1999
Availability Retired
9680 LEGO Education Energy Work, Power Starter Set
Retail $249.99
Value $356.73
Growth 42.7%
Annual growth 1.6%