Can anyone identify this spare tire air compressor?

[MongooseGA]

This has been in the car since I bought it, but I'm wondering if it's correct for the car. It has a rough looking warranty card, a user manual, and a few spare tips in the box. If it's for an old Porsche, it will be for sale. What would it be worth?

Pictures:

[Hil911]

What car is it from/do you have?

It looks very like one that I had in a 1973 911.

Hil

[MongooseGA]

I'm not sure what it's correct for, but it was in my '77.

[carrera30]

I have the same one in my 77 Carrera 3.0. Did the compressor bag, if you have one, also have 'Owafix' plastic gloves in it & a plastic protective BF Goodrich Tire bag?

[MongooseGA]

Just what you see there. There was nothing else with it.

[schoward]

I'm nearly positive the original brochure from my 81SC shows a picture of that compressor/box (even though I think USA models came with the white Webster compressor). Maybe just euro cars at that point. Definitely original.

I have seen those priced at a couple hundred on eBay years ago (i want to say under $300). I would clean it up and see what's what. Maybe even consider just holding onto it. While I don't think they are super rare, they don't come up every day IMO.