Description To make a tax free purchase, please complete the Tax Exemption Form Base & top of carriage sub-assembly – used for repairs on applicable braillers. Units Per Package: 1 Current Part Number: 68-1311-0-0 Past Part Number(s): Assy #13-11 Assembly Location (if applicable): 13-11 Applicable Braillers: Perkins Brailler, APH Light Touch Brailler, Electric Perkins Brailler, Large Cell Perkins Brailler, Large Cell Electric Perkins Brailler, Unimanual Perkins Brailler