A sat nav, mobile phone and pairs of sunglasses are among the items recovered from what police believe to be vehicle thefts in Northwood and Oxhey.
Hertfordshire Constabulary has released a number of images of items that are believed to have been recovered from vehicle thefts.
The items were located after a warrant was carried out at an address in Pinner last Tuesday.
Officers would like to speak with anyone who believes they recognise the items as belonging to them.
There were a number of thefts from motor vehicles reported in Moor Park, Northwood and Oxhey Hall between January and April.
It is possible some people may not yet be aware of a theft from their vehicle.
PC Dan Jones said: "Whilst we have been making attempts to identify possible victims and reunite them with their property, we still have some items outstanding. I would ask the residents of South Oxhey, Moor Park and Northwood to take a look at these photos and contact me should they recognise anything."
Anyone who believes they recognise any of the items is asked to contact PC Jones via email email@example.com or via the non-emergency number 101.