OTC Time Calculators

Time to Call?

by Robert Brand.

Graham Watts sent me these photos of OTC time calculators. Very useful even today. I have already posted one to the header images some weeks back, but Graham has sent three more plastic types all different from Mine. He also notes that there may have been at least one cardboard version of the calculators. If anyone has different versions of these, please send to me so that we can add them to the photographic collection.

Advertisements

One thought on “OTC Time Calculators

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s