Lincolnshire Police are appealing for witnesses to assault in Deeping St James, with a clear description of the attacker released.
The suspected offender is described as “a large white male”, between 30 and 40, bald but with stubble, and wearing a dirty grey tracksuit.
Officers have said that the alleged offender left Laxton Close in a white Transit van with a roof rack that had a plumbing pipe carrier attached.
Anyone with information should call police on 101, quoting incident number 332 of October 18.
Alternatively, contact the independent charity Crimestoppers anonymously on 0800 555 111.