Is LEGO Rail Crossing (4519-1) considered a rare set?

Yes, as a 1999 set with only 1 piece, this item is quite rare in the current market.

What is the theme associated with this set?

The theme for this specific set is 9V.

This set contains only 1 piece.

Name: LEGO Rail Crossing (4519-1)
Brand: LEGO

9V · 1999

Theme · 9VPieces · 1Set Number · 4519-1Year · 1999

Used

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New / Sealed

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Is LEGO Rail Crossing (4519-1) considered a rare set?: Yes, as a 1999 set with only 1 piece, this item is quite rare in the current market.
What is the theme associated with this set?: The theme for this specific set is 9V.
How many pieces are in the LEGO Rail Crossing (4519-1) set?: This set contains only 1 piece.