LETTER: Pay and displays

From Mr Michael MccGwire

Sir: Peter Foster's suggestion (letter, 18 November) that museums should charge by the time spent on the premises could be met by the car-park system, when you take a timed ticket on entry and pay on departure.

If payment is to automatic machines that dispense an exit permit in return, this minimises congestion, while still allowing differential pricing according to time of day, day of week, or category of visitor.

Yours faithfully,

M. K. MccGwire

Durlston, Dorset