For your consideration is a Mitutoyo Metric hardened stainless rule No. 180-503 with a combination head ,center finder and protractor head.
These items are marked made in Japan and are in decent condition.
They have been cleaned,but might need a little more TLC.
The rule has a name inscribed in it as does the center head. ( pictured and circled )
The protractor head is a different color from the other two and might be slightly older.
Please look closely at the attached images !
They are an important part of the description and help provide a good idea as to the condition of these items.