Technical Help Identify a few things, please.

I don't remember when or where I got the following items but I know they have been in my shop for several years. Any help IDing them or any additional info on them would be greatly appreciated.
First up is an old clock. I know nothing about it. Second is a Snap-On combination wrench and third is a hand held tach. It is missing some of the extra pieces.

 

The tach in excellent condition with all it's parts and box could fetch $75 or so.
Missing parts maybe $20-30, they are not rare.
The clock, early 50's Ford maybe?

 

What a shame on the snap on wrenches. They must have been under water for a long time to lose the finish. I have a set of them and I use them a lot. How much do you want for them?

 

I just have the one wrench and I am curious about the age of it. It has looked like that as long as I have had it. The socket ends still swivel and they are not sloppy loose but still pretty tight.

How old would the tach be and how would it have been used?

 

I've got a Stewart Warner tach that my Dad used in sawmills to measure the shaft speed of circular saws. Hold the rubber button on the end of the shaft like the directions state. Mine is in an original tin can & probably as old as me (1949).

 

I also have an "Audels New Automobile Guide for Mechanics Operators and Servicemen" by Frank Graham.It was first printed in 1938 but the one I have is a 1959 edition.

 

Looks like you have a car clock, swivel box wrenches, and a had held tachometer with instructions in its original container.
But I think you knew that....

 

I thought I did but, I'm glad you confirmed my suspicions. Now, is the last item a book?

 

Yes, it appears to be more of a manual than a book in the photos.

 

Really? You posted a picture of the instructions.

 

The clock is for a '51 Ford car.

 

Hi. The tach info gives the impression it is for automotive work but as it is applied to the center of the rotating part, usually shaft it would be beyond dangerous on an engine. Quick way to get a handful of fan blades. Also there is not enough room between end of shafts or pulleys on an engine to clear the radiator most likely.
I was an industrial electrician and we had them to check electric motor and gear drive speeds and was fairly accurate for that.
Jimmie

 

Yes.

 

I did but I don't read old english very well!

 

Thank you.

 

Here is a link to the snap on date chart. Your wrench is from 1959.

http://www.collectingsnapon.com/index.php?page=Data_Chart/Date Chart

 

snap on is probably a militarily or industrial in that finish

 

I also have a hand held tach, and have used it to determine the speed of small motors, and to crosscheck the accuracy of electronic tachs.
I also have a couple of the wrenches, and they only have a slightly better finish than the one in your picture.
As for the book, Audel put out a series of books on everything from automotive to plumbing and electronics. They updated them several times over the years. I have several of them in a box somewhere, and they are interesting to look at to see how much things have changed.
Bob

 

It doesn't really say whether its an automotive or non auto related. It also has AC Spark plug all throughout the document. It is a typical instruction manual which really leaves gray areas for the average Joe to well...ask a question. Now I know...measure anything that rotates auto or non auto but use yer heed...or damage could occur to oneself.

 

Had a Stewart Warner hand held tach at work. While we used it to check RPM on various types of shaft driven truck equipment; the instructions had charts to convert axle speed and tire diameter to MPH; so I would say it has automotive applications.

 

Old English. Interesting. Never heard it called that. More like it was written by a skilled technician.