Object label
LEGO · LEGO · Expert Builder · 1977
LEGO 4.5V Supplementary Set (870-1) is a 1977 set from the Expert Builder theme with 22 pieces.
4.5V Supplementary Set (870-1) is a LEGO Expert Builder release from 1977 with 22 pcs. GrailHub tracks it as part of the LEGO collecting lane, where set number, theme, release year, piece count, and display appeal all help collectors understand how the set fits on a shelf.
LEGO collectors often browse by theme first, so this page links back into Expert Builder, LEGO, and related LEGO objects. Use those links to compare nearby releases, find other display sets, or move from a single set into the wider theme.
Related LEGO entries currently connected to this object include Dragster, Expert Builder Power Pack, and Tow Truck. These links make it easier to keep exploring without jumping back to a generic search page.
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