Feature  

Description 

Case:  

Color case:  

Grey

Color keyboard:  

Grey

Weight:  

Voltage selection:  

Adapter:  

Power consumption:  

Working condition:  

Printed Circuit Boards (PCB's):  

Memories:  

3 (Core)

Memories indication:  

Prog. steps:  

N/A

Decimal point handling:  

Yes

Rounding:  

Calculation overflow indication:  

Yes

Input overflow indication:  

Divide by Zero indication:  

Square root of negative value indication:  

Negative value indication:  

Constant function:  

Yes

Auto Power-off:  

Display details:  

Keyboard details:  

Printer:  

Extra features/remarks:  

The WANDERER company has a huge history (going back to 1885) in making bicycles, motorcycles, and even cars (read more about it on this link). 
In the early 1950's, WANDERER is gradually buying out EXACTA CONTINENTAL Gmbh, a big (mechanical) calculator manufacturer, which did develop a partial electronic book-keeping machine (The Multitronik) as early as 1958.
In 1968 the WANDERER Company is bought by NIXDORF COMPUTER AG.
even today the WANDERER-WERKE still exists.
This illustrated calculator is probably the second electronic calculator ever with a printer, (see also: interesting story by The Old Calculator Museum).
14-digit input, 28-digit internal calculation, decimal Automatic.
Several versions were available:
- Conti 10: with 10 memories (Square Root on demand),
- Conti AF, 
- Conti AFD,
- Conti D,
- Conti M,
- Conti ND,
- Conti AF,
- Conti P,
- Conti R (Scientifical calculations with Square Root,
  calculations up to 12 positions after the decimal).

Initial price:  

Overall quality rate (1-10):  

OEM Copies:  

Other sources of info:  

Advertisements/Publications:  

WANDERER: Conti