Huntington Park Rubber Stamp Co, 
HEAVY DUTY or Plastic Self Inking Daters
TRODAT "Printy" (Plastic) Self Inking Die Plate Daters
Always up to date: Printys with date, numbers or text bands, customized text or various stock texts. All models come with a built-in inkpad (5 colors standard, some stamps also with blue/red pad available).
TRODAT Heavy Duty Die Plate DATERS
Professional Line daters with customized stamp texts and built-in inkpad (Standard colors are black, blue, green, red and violet, but with stamps a blue/red inkpad is also offered!) available in various text plate sizes.