This is just the box for the 323 Citroen DS19 Monte Carlo model. This was one of the models featured in the Gift Set 38 Monte Carlo and, as for the Rover and Mini, only available for a short time in 1965/6. Original boxes for these models are extremely hard to find now and worth a lot more than the model on its own.
This box is not complete, missing the end flaps at one end but is otherwise very clean ad in very good condition. It has fresh colours, good edges, no graffiti and just a pencilled 5/- (five shillings) on one side.
If I can find the missing flaps then it would be worth making a repair but in the meantime it is sold as it stands.