AI-assisted community identification

Number 9 and Tail Slag

M.F. Christensen & Son · 1904-1917

Number 9 and Tail Slag by M.F. Christensen & Son, identification view
Community photograph · added 30 August 2026

Identification summary

The M.F. Christensen 'Number 9 and Tail' is a quintessential early machine-made slag marble. It is characterized by a transparent colored base (in this case, green) with opaque white swirls that form a distinct numeral '9' at one pole and a trailing 'tail' at the other.

Visible record

Maker candidate
M.F. Christensen & Son
Era
1904-1917
Pattern
Slag
Rarity assessment
Uncommon
Condition assessment
Near Mint
Size
Shooter (1 inch)
Material
Glass