Catalogue No.
2451
Inclined Plane Apparatus
Same as Cat. No. 2450 but with Brass Arc and Brass N.P. Roller
Same as Cat. No. 2450 but with Brass Arc and Brass N.P. Roller.
Same as Cat. No. 2450 but with Brass Arc and Brass N.P. Roller
Same as Cat. No. 2450 but with Brass Arc and Brass N.P. Roller.