Looking for any of these:
"N103 Coin Telephone Circuit Description", North Electric Co., 662-822-121.
Field Maintenance Manual, Teletek Model 103 Paystation.
"Installation Instructions For The North Model N-103 Coin Telephone".
"N103 Coin Telephone Circuit Description", North Electric Co., 662-822-121.
"Installation Instructions, 552062 Local Prepay Adapter".
CEECO "Single-Slot Coin Telephones".
CEECO "Handbook of Installation and Maintenance - 200 Paystation".
"CEECO 201 Paystation Handbook of Installation and Maintenance".
"CEECO 202 Paystation Handbook of Installation and Maintenance".