New Member,old time piece needs help

Does anyone have any info on a ----> LÈp. c. 55 - 18lig. Schaffhausen. is it a IWC or earlier timepiece? I can't seem to find any info on it,only warnings about fakes. Any info would be wonderful
Here.s some pics,,,,

I could be wrong, but these may assist:

www.iwc.com/forum/en/discussion/42597
www.iwc.com/forum/en/discussion/1251/