Vintage 1985 Lego Basic Building Set 520 168 Pieces Total Never Opened Brand New | #519421265
Amazon.com: Eske Kouri Gobricks GDS-520 Plate 4 x 6 Compatible with Lego 3032 All Major Brick Brands Toys Building Blocks Technical Parts Assembles DIY (21 Red(010),10 PCS) : Toys & Games
Library Lego 520 | Lackawanna County Library System
LEGO 527 Basic Building Set, 5+ Instructions, Basic