Christensen Agate "Slags" are transparent color-based marbles with opaque white swirls. They came in a variety of colors, with peach being the rarest and unique to the company. They always have one or two seams.
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 vintage beautiful akro agate slag onyx 2 marbles rare old excellent US $4.99 Sale ends: 15m |
 7 vintage slag marbles christensen peltier US $7.95 Sale ends: 43m |
 vintage beautiful akro agate slag onyx 2 marbles blue rare old excellent US $4.99 Sale ends: 1h 6m |
 marbles christensen agate green slag mint US $3.24 Sale ends: 1h 25m |
 marbles christensen agate red slag mint US $3.24 Sale ends: 1h 28m |
 marbles christensen agate white slag mint US $2.99 Sale ends: 1h 32m |
 vintage marble christensen red slag US $9.50 Sale ends: 1h 54m |
 vintage marble christensen slag US $9.50 Sale ends: 1h 56m |