Thieves raided outbuildings at a house in Telford and stole five vintage bicycles, some of which were 100 years old and were of sentimental value.
The bikes, from 1912 and the 1950s, were stolen during the break-in at the property at The Rock in St Georges.
The thieves forced their way into a garage and two sheds and made off with the bikes.
They included an Armstrong upright road bike dating back to 1912-1915, a 1950s upright Raleigh pedal cycle and a South African bomber bike, which has search lights and a bomber on the frame and the word Springs written on it.
Police are appealing for anyone with information about the raid which happened sometime between 7pm on Thursday and 10.40am on Friday to contact them.
A Telford Police spokeswoman said: “The bikes date back to 1912 and the 1950s and are of sentimental value to the victim.
“We are carrying out inquiries in relation to the break-in and would appeal to anyone with information to come forward.
“It is possible that thieves may try and sell the bikes to somebody or for scrap, so we would ask people to be vigilant and to call us if they come across any suspicious activity in relation to the sale of such bikes.”
Anyone with any information about the incident is asked to contact Telford Police on 101.