Mine has part # 124 583 03 15 stamped on the flange at the Rod.
My "Insert Rod"(we'll call it the "Business End") Does Not swivel up/down vertically.(As yours in the picture does)

"Business End" rod on mine is approximately 3 inches long.
The Jack Hole is 3 1/4 inches deep.

The Plastic cap at the top (Where the crank handle is) is embossed "Bilstein".

I think you've got a nicer jack,BUT it might be for another chassis.

(Mine does lift the chassis up enough to change a tire)

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'84 300SD sold
124.128

mine does the job on our cars.... I mean, at home. I much rather use a floor jack... but as long as I have the brake on, I feel good....

I just looked at my 124's... it's stamped with 140!