That’s a 1948 trailer? The fenders suggest it is later than 1948 (but I am no trailer expert).

https://raleigh.craigslist.org/cto/d/1948-willys-cj2/6521186950.html

“Due to health reasons I am selling my 1948 CJ2-A. This is a true unmolested Willys Jeep; the four cylinder drive train is all original. Yes — EVERYTHING works: gauges, 4-wheel drive, high and low range, and even has a roll bar. Things I’ve added — new electric wipers (last summer), ordered a new hinge over windshield(inner and outer), as well as a deluxe tiger top with removable doors and zip out windows — all have been professionally installed. Items were purchased from www.KAISERWILLYS.com.

I had the seats covered with waterproof canvas, new carburetor, new gas tank (2 years ago). Jeep comes with some original parts: wheels ,vacuum operated wiper motor, and passenger side hand operated wiper. I also have the frame for the original canvas top and a few other odd and ends. Also comes with a nice tow bar; with 2″ ball not installed and a year correct matching trailer (in decent shape but no tail-gate–not rusted out)–will not separate Jeep and trailer. To be 70 years old this Jeep is mechanically sound. It fires right up and runs like a top.

The $5800.00 is a firm and fair price. CASH ONLY.
I don’t need any help selling the Jeep nor do I want to trade.
I have clear title in hand.”