30 january 2014 - St Mary`s Street, Lincoln. Bringing a little colour to the city is this vehicle, worked by independent operator PC Coaches on a small network of routes linking Lincoln to local villages. PC Coaches bus services are not all allocated a service number.St Mary\`s Street, Lincoln. Bringing a little colour to the city is this vehicle, worked by independent operator PC Coaches on a small network of routes linking Lincoln to local villages. PC Coaches bus services are not all allocated a service number. Author: shedinagarden