Tessar lens is from 1935. If the second number is from a Compur shutter, it is from 1931. It is quite normal for lens and shutter to have differing dates but four years is rather a lot. Could indicate a repair.
The 530/2 was made from 1933 to 1939 so, if that second serial number is the shutter, the shutter cannot be an original part. (Edit: it is the shutter and it is a Compur)
Hi, I'm new here. I also have an 530/2 recently bought for about 25€!!!. The serial# on the camera is Y40821, on the lens (Tessar 4.5/105) #1516075 and on the shutter (Compur) 1220276.
As I understand it:
Body late 1934/early 1935. Lens 1934. Shutter 1930.
I don't think that my shutter is replaced. I will remember that i have read somewhere on the net that Zeiss bought a huge amount of shutters from Deckel around 1930 and thats why they show up a few years later on the 530/2.
Can anyone here tell me from what batch the lens comes from?
Your Tessar is from a batch of 2000, of which the production ended March 27, 1934. The computation date of this particular Tessar is labeled April 5, 1927. And the focal length of your lens certainly is 10,5 cm...