lettershop services, namly, the processing of advertisement mail on behalf of a client for public delivery, including electronic printing or laser imaging of such advertisement mail, if necessary, and further including sorting, packaging, addressing the advertisement mail product in keeping with data provided by the client, sealing, and bagging the mail product, and delivery of the same to the postal or other mail delivery service

lettershop services, namely, the processing of advertisement mail on behalf of a client for public delivery, including electronic printing or laser imaging of such advertisement mail, if necessary, and further including sorting, packaging, addressing the advertisement mail product in keeping with data provided by the client, sealing, and bagging the mail product, and delivery of the same to the postal or other mail delivery service