You are here:

Antique Clocks/isgus clock


clock pictures
clock pictures  

clock picture
clock picture  
hello Wayne, I Was Looking To Find Out The Value Of An Old Grandfather Clock. It Is A ISGUS or JSGUS Grandfather Or grandmother Clock.It IS About 5'10". I Found Some MarkingS On The Mechanism Inside. They Are   P115 And 44838. There Is Also A Number Stamped On The Black Iron PLate That Says ISGUS On It, The Number Is 1134. I Have Attached Some PictureS That Might Help Identify It. I Have Not Been Able To Find Out Any Info On This ......Please Help.


Grandfather and grandmother clocks are worth pretty much what ever you can get for them.  You do have a fairly old German clock.  Please see below.

Join Date
   Aug 2004

usa  de brandenburg
Default Re: ISGUS Grandfather Clock (RE: Steven Thornberry)

   Welcome Dave --

   The firm is J. Schlenker-Grusen, and you'll find some information on-line through "Schlenker-Grusen" or "ISGUS". There's a small print, full-page reference in Hans-Heinrich Schmid's Lexikon der Deutschen Uhrenindustrie 1850-1980. The ad below comes from a 1925 German "address book."


Attached Thumbnails Attached Thumbnails Adr.buch 1925 S.008.jpg  

Try a new search using this information.

Let me know what you find out.

Please visit our web site:

Antique Clocks

All Answers

Answers by Expert:

Ask Experts




I will answer any clock repair questions to the best of my ability but not appraisal questions.


I have been repairing mechanical and electric clocks for over 25 years.

I am a current expert in the small appliance catagory.

BS Education

Past/Present Clients
We have been in business in the Madison, Wi. area for over 30 years.

©2017 All rights reserved.