Info. needed on insulators

[Wilkie]

I am not really an insulator collector, however, as most other bottle collectors, I have a few laying around. I'm going to post pics of the ones I have and I hope someone can tell me about them, ie. age, value, scarcity. My guess is they are all common but I would love to hear from an expert. Here is the first pic.
#1) WHITALL TATUM CO. NO. 1 (front in a straight line) / MADE IN USA (back)
#2) WHITALL TATUM CO. NO. 1 (front in an arch)
#3) WHITALL TATUM CO. NO. 5 (straight line)

 

[Wilkie]

#4) HEMINGRAY 56 (front) / MADE IN USA / 24-48
#5) HEMINGRAY / 0_4 (front) / MADE IN USA / 69

 

[Wilkie]

#6) McLAUGHLIN - 20
#7) McLAUGHLIN (front) / No 42 (back)

 

[Wilkie]

#8) ARMSTRONG DP1 ( the "A" is in a circle ) / MADE IN USA . 56 61....
#9) PYREX / T.M. REG. U.S. PAT. OFF (front) / MADE IN U.S.A. / PAT. APPD. FOR / KR
#10) W. BROOKFIELD (front) NEW YORK (back)

 

[Brains]

1st row: cd-154, cd-155, cd-164
2nd row: cd-203, cd-115
3rd row: cd-164, cd-154
4th row: cd-155, cd-128, cd-133
Your insulators range from around 1910 (the brookfield cd-133) to the 1950's (the cd-155's or the 203)
Generaly more common insulators, not sure about the McLaughlins though, but you have a nice collection going.

 

[Wilkie]

what are those "cd" numbers?

 

[Brains]

sorry, i should have explained that.
Cd #'s are the style numbers giver to the different types of insulators. In most if not all cases they are different than the style # given to an insulator by the company that made them. You can find out moreabout cd#'s at www.nia.org

 

[Wilkie]

Thanks, I appreciate the info. I need to dig out the rest of them, I have some others in the garage "somewhere".