This is a replacement blade for Disston Cordless Electric Grass Shears (does not require electric grass) model RN-1A/30. Lack of any Web Presence shown anywhere on the package would put this before the turn of the century, most likely in the 1990s. It is still brand spanking new and sealed on its card. The card has some wear from age and normal handling. See pictures for details. The Disston models this is compatible with are EGS-1 Series, UC 96, UR-2 Series, and AA-3 Series.
Accepted payment methods are:
Cash (mailed in a secure manner)
Money Orders and Cashier's Checks
Personal Checks (expect a hold of up to 10 business days for clearing)