The sign at Hampton-in-Arden indicates one hundred and two and three quarter miles from Euston. The poles carrying the overhead cables also indicate the mileage from Euston in whole miles, with the second number being the the structure number within that mile. So structures nearby would be labelled something like:"The company shall cause the length of the railway to be measured, and milestones, posts, or other conspicuous objects to be set up and maintained along the whole line thereof, at the distance of one quarter of a mile from each other, with numbers or marks inscribed thereon denoting such distances."