Slates from Thailand

Manufacturer/Distributor: unknown
Country: Thailand
Type: pocket
Code: braille
Lines: 4 Cells: 28
Interline: no Interpoint: no
Character size: standard
Material: plastic
Features: print and braille alphabet on back; counting ridges on one edge
Comments: inscribed: produced by the Technical School
Record number: 167
Catalog number: pxx-043