Novice TLR User - What is my camera?

Hi everyone,
I'm new on here, and would love to get some assistance in deciphering what type of TLR I have purchased. Happens a lot I'm sure.

The official name is: Rolleiflex TLR Zeiss Tessar 1:3.5 f7.5 - 1938

I want to purchase other lenses, bayonets, accessories and bits and bobs and not really sure if the above is a 2.8 or 3.5? T? E?
I've been looking on the Rolleiclub website across the serial numbers but it all looks a bit 'mumbo-jumbo' to me
The aperture plate on the back of this one is in German as well.

I've added some photos, any help would be greatly appreciated!

Thanks again

N.E

I'm 99% sure it's:

http://www.rolleiclub.com/cameras/tlr/info/automat.shtml

The first Automat on that page. It fits the serial number and date. It's much older than the E or T models you mention. As far as I can see, it takes bayonet 1 filters and accessories on the taking lens.

According to this site:

Dead Link Removed

You have an Automat.

It's a 3.5. Bay I.

On this page it's the first one at the top, the Model RF. 111A :

http://www.rolleiclub.com/cameras/tlr/info/automat.shtml

Probably the fitting for filters etc would be the B1 size, it would be a 3.5, that refers to the F stop No, and could well be one of the automat range, the 7.5 that you see is the lens size, the standard is 75mm, so it is a Tessar 75mm F3.5 lens, and stopped down a couple of stops it is a very good lens, My own Rolleiflex has a 75mm Tessar 3.5, and is an automat, it is my main camera, although a little younger than yours at 1954, whatever model it is just enjoy the experience of using the greatest TLR ever made, A rolls Royce of cameras.
Richard

Yes, it's a Rolleiflex Automat. It was most probably made in 1938, because it has the "cap" you can swing over the shutter release and a bayonet on the taking lens only. "RF. 111A" is only the factory name, never used for the public.

It takes Bayonet I filters and sunshade.

If you want the close-up lenses, remember that you can't use the later Rolleinars with bayonet mounts for both lenses, since your camera only has a bayonet on the taking lens.

For this camera Zeiss made a Proxarsatz (Proxar-Set) with one close-up Proxar lens in slip-on mount 28,5 mm for the viewing lens and one in bayonet mount for the taking lens. Then on the viewing lens Proxar you put the Rolleiparkeil parallax compensation accessory.

You can also use the older Proxarsatz with two 28,5 mm slip-on Proxars, and then the Rolleiparkeil for the viewing lens Proxar.

It's a fine camera! It's pre-war, but it's lighter than many of the later models. Very high quality, and the uncoated Tessar is excellent, especially for black and white. I have one just like that, and you can see it on my avatar together with the smaller 4x4 Rolleiflex also made in 1938.