I collected military dinky toys as a kid. Had the Centurian Tank and it's transporter, also the 25 pounder field gun set, a small trailer and a sort of Jeep pulling vehicle. A Saracen armoured car, scout vehicle, all sorts. I spent years collecting them then sold the whole lot lock stock and barrel for a couple of quid (lot of money in the early sixties) when I got older.
Now they're collectors items !!! ..... go figure. (Although I never kept the boxes which apparently the serious collectors insist on.)