12 Boxes Vintage Weber Costello Alpha Chalk White Chalkboard Chalk

This does not affect the value of the chalk.

Vintage Chalk for Kids

2 Boxes Vintage Weber Costello Alpha Chalk White Chalkboard Chalk New Old Stock

Quartet Alpha Non-Toxic Low Dust Chalk, 3/8 Inch Diameter, White, 12 Sticks per Pack (314005) : Chalkboard Chalk : Office Products

This does not affect the value of the chalk.

12 Boxes Vintage Weber Costello Alpha Chalk White Chalkboard Chalk New Old Stock

Weber Costello Chalk

Customer reviews: Quartet Alpha Non-Toxic Low Dust Chalk, 3/8" Inch Diameter, White, 12 Sticks per Pack (314005)

Albany Sellers

Vintage Dustless “Alpha” Crayons - Blackboard Chalk - Weber Costello Co. 1930

The red box is marked 95% pure levigated whitening. It also states that it reduces eye strain.

Vintage Alpha Chalkboard Chalk White Non-Toxic Low Dust 5 Boxes Weber Costello

Vintage Weber Costello Case of Polychromaic Alphasite Chalk Sticks - Ruby Lane

Quartet Alpha Non-Toxic Low Dust Chalk, 3/8 Inch Diameter, White, 12 Sticks per Pack (314005) : Chalkboard Chalk : Office Products

12 BOXES VINTAGE Weber Costello Alpha Chalk White Chalkboard Chalk New Old Stock $95.00 - PicClick

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